Hassell v. Bird , 5 Cal. 5th 522 ( 2018 )


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  • Filed 7/2/18
    IN THE SUPREME COURT OF CALIFORNIA
    DAWN L. HASSELL et al.,                )
    )
    Plaintiffs and Respondents, )
    )                            S235968
    v.                          )
    )                     Ct.App. 1/4 A143233
    AVA BIRD,                              )
    )                   San Francisco County
    Defendant;                  )                Super. Ct. No. CGC 13530525
    )
    YELP INC.,                             )
    )
    Objector and Appellant.     )
    ____________________________________)
    In this case, we consider the validity of a court order, entered upon a default
    judgment in a defamation case, insofar as it directs appellant Yelp Inc. (Yelp) to
    remove certain consumer reviews posted on its website. Yelp was not named as a
    defendant in the underlying lawsuit, brought by plaintiffs Dawn Hassell and the
    Hassell Law Group, and did not participate in the judicial proceedings that led to
    the default judgment. Instead, Yelp became involved in this litigation only after
    being served with a copy of the aforementioned judgment and order.
    Yelp argues that, to the extent the removal order would impose upon it a
    duty to remove these reviews, the directive violates its right to due process under
    the federal and state Constitutions because it was issued without proper notice and
    an opportunity to be heard. Yelp also asserts that this aspect of the order is invalid
    under the Communications Decency Act of 1996, relevant provisions of which
    SEE CONCURRING & DISSENTING OPINIONS
    (found at 47 U.S.C. § 230, hereinafter referred to as section 230)1 relate, “No
    provider or user of an interactive computer service shall be treated as the publisher
    or speaker of any information provided by another information content provider”
    (§ 230(c)(1)), and “No cause of action may be brought and no liability may be
    imposed under any State or local law that is inconsistent with this section”
    (§ 230(e)(3)).
    The Court of Appeal rejected Yelp’s arguments. We reverse. The Court of
    Appeal erred in regarding the order to Yelp as beyond the scope of section 230.
    That court reasoned that the judicial command to purge the challenged reviews
    does not impose liability on Yelp. But as explained below, the Court of Appeal
    adopted too narrow a construction of section 230. In directing Yelp to remove the
    challenged reviews from its website, the removal order improperly treats Yelp as
    “the publisher or speaker of . . . information provided by another information
    content provider.” (§ 230(c)(1).) The order therefore must be revised to comply
    with section 230.
    I. FACTUAL AND PROCEDURAL BACKGROUND
    In June 2012, defendant Ava Bird approached the Hassell Law Group,
    owned by Dawn Hassell (who is hereinafter referred to as Hassell), to represent her
    in a personal injury matter. That August, Bird and the law firm entered into a
    representation agreement. After e-mail exchanges and communication difficulties
    led Hassell to conclude that Bird was unhappy with the firm’s performance, the
    Hassell Law Group withdrew from representation in September 2012. Hassell
    notified Bird of this decision via e-mail.
    Several months later, on January 28, 2013, a one-star (out of five) review of
    the Hassell Law Group appeared on Yelp. This website, available to anyone with
    1      Subsequent undesignated statutory references are to title 47 of the United
    States Code.
    2
    Internet access, provides a forum for reviews and ratings of businesses and other
    entities. Individuals with Yelp accounts author the reviews and issue the ratings.
    Individual reviews and ratings appear on the Yelp website together with the
    author’s Yelp user name and location. A reviewed business may post a public
    response to a user review; this response will appear directly below the review on
    Yelp’s website. Yelp also combines individual ratings into an aggregate rating for
    each business.
    The one-star review was posted by Yelp user “Birdzeye B.” from Los
    Angeles, California. It provided in full (with the spelling, spacing, capitalization,
    and punctuation in this and all other quoted reviews per the originals) as follows:
    “well, here is another business that doesn’t even deserve one star.
    basically, dawn hassell made a bad situation much worse for me. she
    told me she could help with my personal injury case from falling
    through a floor, then reneged on the case because her mom had a
    broken leg, or something like that, and that the insurance company
    was too much for her to handle. and all of this after i met with her
    office (not her personally, she was nowhere to be found) signed
    paperwork to ‘hire’ them and gained confidence in her office (due
    mostly to yelp reviews) so, in all fairness, i have to share my
    experience so others can be forewarned. she will probably not do
    anything for you, except make your situation worse. in fact, after
    signing all the paperwork with her office, like a broken record, they
    repeated ‘DO NOT TALK TO THE INSURANCE COMPANY’ over
    and over and over. and over and over. so I honored that and did not
    speak to them. but the hassell law group didn’t ever speak with the
    insurance company either, neglecting their said responsibilities and
    not living up to their own legal contract! nor did they bother to
    communicate with me, the client or the insurance company AT ALL.
    then, she dropped the case because of her mother and seeming lack
    of work ethic. (a good attorney wont do this, in fact, they aren’t
    supposed to) to save your case, STEER CLEAR OF THIS LAW
    FIRM! and research around to find a law firm with a proven track
    record of success, a good work ethic, competence and long term client
    satisfaction. there are many in the bay area and with some diligent
    smart interviewing, you can find a competent attorney, but this wont
    be one of them.”
    3
    Hassell believed Bird to be the author of this review, and sent her an e-mail.
    Hassell wrote Bird that “[y]ou are certainly free to write a review about your
    experience and provide constructive feedback. But slandering someone and
    intentionally trying to damage their business and reputation is illegal.” Disputing
    statements in the review, Hassell requested that Bird remove or revise it, and
    wrote that “[i]f you are unwilling to talk to me or respond, I will assume you don’t
    intend to work this out [with] me directly and I will retain a defamation attorney
    this week to file a legal action against you for slander and defamation.” Bird
    responded with a lengthy e-mail of her own, in which she stated that Hassell
    would “have to accept the permanent, honest review [I] have given you.”
    Shortly thereafter, on February 6, 2013, another one-star review of the
    Hassell Law Group was posted on Yelp. This review was from the user “J.D.,”
    identified as hailing from Alameda, California. It provided in full as follows: “Did
    not like the fact that they charged me their client to make COPIES, send out
    FAXES, POSTAGE, AND FOR MAKING PHONE CALLS about my case!!!
    Isn’t that your job. That’s just ridiculous!!! They Deducted all those expenses out
    of my settlement.”
    On April 10, 2013, plaintiffs filed suit against Bird in San Francisco
    Superior Court. The verified complaint alleged that Bird wrote both of the
    previously discussed reviews, that these reviews were libelous, and that in posting
    the reviews, Bird cast plaintiffs in a false light and intentionally inflicted
    emotional distress upon Hassell. Plaintiffs sought general, special, and punitive
    damages, as well as “injunctive relief prohibiting Defendant Ava Bird from
    continuing to defame plaintiffs as complained of herein, and requiring Defendant
    Ava Bird to remove each and every defamatory review published by her about
    plaintiffs, from Yelp.com and from anywhere else they appear on the internet.”
    Yelp was not named as a defendant. At oral argument before this court, counsel
    4
    for plaintiffs candidly acknowledged that this omission was intentional. Plaintiffs
    anticipated that if they added Yelp as a defendant and integrated the company into
    the action at that time, Yelp could respond by asserting immunity under section
    230.
    After several attempts at personal service failed, plaintiffs effected
    substitute service. On April 17, 2013, the summons and complaint were left with
    another individual at the address where Bird was believed to reside. In November
    2013, with Bird not yet having appeared in the case, plaintiffs moved for entry of a
    default judgment. In the interim, “Birdzeye B.” had posted on Yelp an “update”
    of her review of the Hassell Law Group. This update (which henceforth will be
    described as a review), dated April 29, 2013, provided as follows:
    “here is an update on this review.
    dawn hassell has filed a lawsuit against me over this review I posted
    on yelp! she has tried to threaten, bully, intimidate, harass me into
    removing the review! she actually hired another bad attorney to fight
    this. lol! well, looks like my original review has turned out to be truer
    than ever! avoid this business like the plague folks! and the staff at
    YELP has stepped up and is defending my right to post a review. once
    again, thanks YELP! and I have reported her actions to the Better
    Business Bureau as well, so they have a record of how she handles
    business. another good resource is the BBB, by the way.”
    In a declaration filed in support of the request for a default judgment,
    Hassell explained that she had connected the January 2013 review to Bird “[b]ased
    on the poster’s user name being similar to Ms. Bird’s real name and the details
    such as ‘falling through a floor.’ ” Hassell also averred that the review from
    “J.D.” had been written by Bird. She further related that since the first of the
    challenged reviews had been posted, the Hassell Law Group had seen a significant
    decrease in user activity on Yelp that suggested interest in the firm, and that as a
    result of this review, its overall Yelp rating had dropped to 4.5 stars.
    5
    A “prove-up” evidentiary hearing was held on January 14, 2014.2 Hassell
    was sworn as a witness and gave testimony at this session. After the hearing, the
    court entered judgment in favor of plaintiffs, awarding general and special
    damages and costs totaling $557,918.85. The court also ordered Bird “to remove
    each and every defamatory review published or caused to be published by her
    about plaintiffs HASSELL LAW GROUP and DAWN HASSELL from Yelp.com
    and from anywhere else they appear on the internet within 5 business days of the
    date of the court’s order.” The court’s order also provides that Bird, and “her
    agents, officers, employees or representatives, or anyone acting on her behalf, are
    further enjoined from publishing or causing to be published any written reviews,
    commentary, or descriptions of DAWN HASSELL or the HASSELL LAW
    GROUP on Yelp.com or any other internet location or website.” Finally, the order
    states that “Yelp.com is ordered to remove all reviews posted by AVA BIRD
    under user names ‘Birdzeye B.’ and ‘J.D.’ attached hereto as Exhibit A and any
    subsequent comments of these reviewers within 7 business days of the date of the
    court’s order.” Exhibit A includes the January 2013 and April 2013 reviews by
    “Birdzeye B.,” and the February 2013 review by “J.D.”3
    2      In a matter such as the one at bar, upon entry of a default, “[t]he plaintiff
    thereafter may apply to the court for the relief demanded in the complaint. The
    court shall hear the evidence offered by the plaintiff, and shall render judgment in
    the plaintiff’s favor for that relief, not exceeding the amount stated in the
    complaint, . . . as appears by the evidence to be just.” (Code Civ. Proc., § 585,
    subd. (b).)
    3      The Court of Appeal used the term “removal order” to describe only the
    sentence within the order that explicitly directs Yelp to remove the three reviews.
    We use this same term to describe the order generally.
    6
    Yelp was served with a copy of the default judgment later that month. 4 In
    response, Yelp’s in-house counsel wrote Hassell a letter that identified several
    perceived deficiencies with the judgment and removal order. The letter
    accordingly advised that “Yelp sees no reason at this time to remove the reviews at
    issue.” The letter added that Yelp reserved the right to revisit this decision if it
    were to receive additional facts responsive to its concerns. Hassell was told that if
    an action were pursued against Yelp premised on its publication of the reviews,
    Yelp would “promptly seek dismissal of such action and its attorneys’ fees under
    California’s anti-SLAPP law.” (See Code Civ. Proc., § 425.16.) Hassell
    responded by letter dated April 30, 2014, explaining her position and asking Yelp
    to reconsider and remove the reviews.
    The next month, Yelp filed a motion to set aside and vacate the judgment.
    In its supporting brief, Yelp argued that to the extent the order to remove the posts
    was aimed at it, the directive violated Yelp’s due process rights, exceeded the
    scope of relief requested in the complaint, and was barred by section 230. Yelp
    also argued that Hassell had not given proper notice of the action to Bird, nor
    connected the challenged reviews to Bird sufficiently to justify an injunction.5
    Yelp requested that the default judgment be set aside and vacated in its entirety, or
    4      In connection with their opposition to Yelp’s motion to set aside and vacate
    the default judgment, plaintiffs supplied documentation indicating that in May
    2013, their attorney sent Yelp a facsimile that included a copy of the complaint
    against Bird, as well as the January 2013 and February 2013 reviews underlying
    the action. Counsel’s facsimile cover letter concluded with his “expect[ation]”
    that Yelp would “cause these two utterly false and unprivileged reviews to be
    removed as soon as possible.”
    5       After not appearing below, Ms. Bird has submitted an amicus curiae brief
    to this court. In her brief, Bird acknowledges writing the January 2013 “Birdzeye
    B.” review, but denies authoring the February 2013 review from “J.D.”
    7
    in the alternative, “modified to eliminate all provisions that compel Yelp to act in
    any manner, or restrain Yelp from engaging in any conduct.”
    The superior court denied the motion to set aside and vacate the judgment.
    In its order denying the motion, the court quoted this court’s generic assessment
    that “ ‘[i]n matters of injunction . . . it has been a common practice to make the
    injunction run also to classes of persons through whom the enjoined person may
    act, such as agents, servants, employees, aiders, abettors, etc., though not parties to
    the action, and this practice has always been upheld by the courts.’ ” (Ross v.
    Superior Court (1977) 
    19 Cal. 3d 899
    , 906.) The superior court applied this
    principle to the present case because, in the court’s view, there was a “factual basis
    to support Hassell’s contention that Yelp is aiding and abetting Bird’s violation of
    the injunction.” As evidence of this aiding and abetting, the superior court noted
    that “Yelp highlighted at least one of Bird’s defamatory reviews by featuring it as
    a ‘Recommended Review,’ ” that “a litany of favorable reviews are not factored
    into the Hassell Law [Group]’s star rating, appearing to give emphasis to Bird’s
    defamatory review,” that Yelp was moving “to set aside the judgment in its
    entirety, including the portions of the judgment that pertain only to Bird” and
    otherwise was advancing arguments “on Bird’s behalf,” and that “notwithstanding
    a judicial finding that Bird’s reviews are defamatory, Yelp refuses to delete them.”
    Yelp appealed. It reasserted on appeal that the order, to the extent that it
    commanded Yelp to remove the challenged reviews, violated the company’s due
    process rights, as well as section 230. (Hassell v. Bird (2016) 
    247 Cal. App. 4th 1336
    , 1341, 1355, 1361.)6 The Court of Appeal rejected both arguments. It first
    6     The Court of Appeal’s opinion also addressed several other issues not
    encompassed within our grant of review. (See Hassell v. 
    Bird, supra
    , 247
    Cal.App.4th at pp. 1348-1354.) We express no views regarding the Court of
    Appeal’s analysis of those topics. We likewise have no occasion to opine on
    8
    found no due process violation in allowing the injunction to run against Yelp. As
    had the superior court, the Court of Appeal regarded Yelp as being among the
    actors to whom the injunction could properly extend, even though it was not a
    party to the proceedings that led to the injunction. (Id., at pp. 1355-1357.) The
    Court of Appeal also found no merit in Yelp’s related argument that, regardless of
    whether an injunction normally can run against nonparties, the injunction here
    could not properly extend to it because such a reach would unduly limit the
    dissemination of speech. The Court of Appeal questioned the premise of this
    argument, opining that “it appears to us that the removal order does not treat Yelp
    as a publisher of Bird’s speech, but rather as the administrator of the forum that
    Bird utilized to publish her defamatory reviews.” (Id., at p. 1358.) The Court of
    Appeal also observed that in Balboa Island Village Inn, Inc. v. Lemen (2007) 
    40 Cal. 4th 1141
    , this court ruled that “ ‘an injunction issued following a trial that
    determined that the defendant defamed the plaintiff that does no more than
    prohibit the defendant from repeating the defamation, is not a prior restraint and
    does not offend the First Amendment.’ ” (Hassell v. Bird, at p. 1360, quoting
    Balboa Island, at p. 1148.) The Court of Appeal concluded that “[u]nder the
    authority of Balboa Island . . . the trial court had the power to make the part of this
    order requiring Yelp to remove the three specific statements . . . because the
    injunction prohibiting Bird from repeating those statements was issued following a
    determination at trial that those statements are defamatory.” (Id., at p. 1360.)
    Turning to Yelp’s section 230 argument, the Court of Appeal recognized
    that “section 230 has been construed broadly to immunize ‘providers of interactive
    whether the challenged reviews are in fact defamatory, in whole or in part. Our
    analysis assumes the correctness of the superior court’s determination on this
    point.
    9
    computer services against liability arising from content created by third parties’ ”
    (Hassell v. 
    Bird, supra
    , 247 Cal.App.4th at p. 1361, quoting Fair Housing Coun.,
    San Fernando v. Roommates.com (9th Cir. 2008) 
    521 F.3d 1157
    , 1162, fn.
    omitted), and that in Barrett v. Rosenthal (2006) 
    40 Cal. 4th 33
    (Barrett), this court
    similarly regarded section 230 as, in the words of the Court of Appeal,
    “afford[ing] interactive service providers broad immunity from tort liability for
    third party speech” (Hassell v. Bird, at p. 1362). The Court of Appeal further
    acknowledged that “section 230 also ‘precludes courts from entertaining claims
    that would place a computer service provider in a publisher’s role. Thus, lawsuits
    seeking to hold a service provider liable for its exercise of a publisher’s traditional
    editorial functions — such as deciding whether to publish, withdraw, postpone or
    alter content — are barred.’ ” (Id., at pp. 1361-1362, quoting Zeran v. America
    Online, Inc. (4th Cir. 1997) 
    129 F.3d 327
    , 330 (Zeran).)
    The Court of Appeal nevertheless determined that section 230 does not
    prohibit a directive that Yelp remove the challenged reviews. The court reasoned
    that “[t]he removal order does not violate . . . section 230 because it does not
    impose any liability on Yelp. In this defamation action, [plaintiffs] filed their
    complaint against Bird, not Yelp; obtained a default judgment against Bird, not
    Yelp; and [were] awarded damages and injunctive relief against Bird, not Yelp.”
    (Hassell v. 
    Bird, supra
    , 247 Cal.App.4th at p. 1363.)
    The Court of Appeal recognized that other courts (e.g., Kathleen R. v. City
    of Livermore (2001) 
    87 Cal. App. 4th 684
    (Kathleen R.); Noah v. AOL Time
    Warner, Inc. (E.D.Va. 2003) 
    261 F. Supp. 2d 532
    ; Smith v. Intercosmos Media
    Group (E.D.La., Dec. 17, 2002, No. 02-1964) 
    2002 WL 31844907
    ; Medytox
    Solutions, Inc. v. Investorshub.com, Inc. (Fla.Dist.Ct.App. 2014) 
    152 So. 3d 727
    )
    had construed section 230 immunity as extending to claims for injunctive relief.
    (Hassell v. 
    Bird, supra
    , 247 Cal.App.4th at p. 1364.) But the Court of Appeal
    10
    regarded those cases as inapposite because they involved situations in which
    section 230 immunity had been interposed by a named party at a stage of the
    proceedings when the cases merely involved allegations of improper conduct by a
    third party, “and not a judicial determination that defamatory statements had, in
    fact, been made by such third party on the Internet service provider’s Web site” in
    a case filed against only the third party. (Hassell v. Bird, at pp. 1364-1365.) The
    court also rejected the argument that the prospect of contempt sanctions would
    amount to “liability” under the statute. (Id., at p. 1365.) According to the Court of
    Appeal, “sanctioning Yelp for violating a court order would not implicate section
    230 at all; it would not impose liability on Yelp as a publisher or distributor of
    third party content.” (Ibid.)
    The Court of Appeal thus affirmed the superior court’s order denying
    Yelp’s motion to set aside and vacate the judgment, albeit with instructions to the
    superior court to modify the order on remand so that it compelled only the removal
    of the three challenged reviews. (Hassell v. 
    Bird, supra
    , 247 Cal.App.4th at
    pp. 1365-1366.)7 We granted review.
    II. DISCUSSION
    Before this court, Yelp renews the constitutional and statutory arguments it
    raised before the Court of Appeal. Namely, Yelp maintains that the removal order
    does not comport with due process insofar as it directs Yelp to remove the three
    reviews at issue without affording prior notice and an opportunity to be heard.
    Yelp also claims that this aspect of the order violates section 230 by treating it as
    7       This modification owed to the Court of Appeal’s conclusion that “to the
    extent the trial court additionally ordered Yelp to remove subsequent comments
    that Bird or anyone else might post, the removal order is an overbroad prior
    restraint on speech.” (Hassell v. 
    Bird, supra
    , 247 Cal.App.4th at p. 1360.) The
    Court of Appeal therefore remanded the case “to the trial court with directions that
    it modify the removal order consistent with this limitation.” (Ibid.)
    11
    “the publisher or speaker of . . . information provided by another information
    content provider.” (§ 230(c)(1); see also § 230(e)(3).) Because the statutory
    argument is dispositive, there is no need to address the due process question. (See
    Loeffler v. Target Corp. (2014) 
    58 Cal. 4th 1081
    , 1102 [“[o]ur jurisprudence
    directs that we avoid resolving constitutional questions if the issue may be
    resolved on narrower grounds”]; Santa Clara County Local Transportation
    Authority v. Guardino (1995) 
    11 Cal. 4th 220
    , 230-231.)
    A. Section 230
    Section 230 appears within the Communications Decency Act of 1996, 8
    enacted as Title V of the Telecommunications Act of 1996 (Pub.L. No. 104-104,
    110 Stat. 56). Congress enacted section 230 “for two basic policy reasons: to
    promote the free exchange of information and ideas over the Internet and to
    encourage voluntary monitoring for offensive or obscene material.” (Carafano v.
    Metrosplash.com, Inc. (9th Cir. 2003) 
    339 F.3d 1119
    , 1122; see also 
    Barrett, supra
    , 40 Cal.4th at pp. 50-54 [reviewing the legislative history of section 230].)
    One of the impetuses for section 230 was a judicial decision opining that because
    an operator of Internet bulletin boards had taken an active role in policing the
    content of these fora, for purposes of defamation law it could be regarded as the
    “publisher” of material posted on these boards by users. (Stratton Oakmont, Inc.
    v. Prodigy Services Co. (N.Y.Sup.Ct. 1995) 23 Media L.Rep. 1794 [
    1995 WL 323710
    ]; see also 
    Barrett, supra
    , 40 Cal.4th at pp. 50-53.)
    Section 230 begins with a series of findings and policy declarations. The
    findings include, “The rapidly developing array of Internet and other interactive
    computer services available to individual Americans represent an extraordinary
    8      Provisions of the Communications Decency Act of 1996 different from the
    ones presently before the court were struck down as unconstitutional in Reno v.
    American Civil Liberties Union (1997) 
    521 U.S. 844
    .
    12
    advance in the availability of educational and informational resources to our
    citizens” (§ 230(a)(1)), and “The Internet and other interactive computer services
    have flourished, to the benefit of all Americans, with a minimum of government
    regulation” (§ 230(a)(4)). The policies include the goals “to promote the
    continued development of the Internet and other interactive computer services and
    other interactive media” (§ 230(b)(1)), and “to preserve the vibrant and
    competitive free market that presently exists for the Internet and other interactive
    computer services, unfettered by Federal or State regulation” (§ 230(b)(2)).
    Implementing these views, section 230(c)(1) provides, “No provider or user
    of an interactive computer service shall be treated as the publisher or speaker of
    any information provided by another information content provider.” 9
    Section 230(e)(3), meanwhile, relates in relevant part, “No cause of action may be
    brought and no liability may be imposed under any State or local law that is
    inconsistent with this section.” Section 230 defines an “interactive computer
    service” as “any information service, system, or access software provider that
    provides or enables computer access by multiple users to a computer server,
    including specifically a service or system that provides access to the Internet and
    such systems operated or services offered by libraries or educational institutions.”
    (§ 230(f)(2).) The term “information content provider,” meanwhile, “means any
    person or entity that is responsible, in whole or in part, for the creation or
    9      Section 230(c)(2), another immunity provision within the statute, provides,
    “No provider or user of an interactive computer service shall be held liable on
    account of — [¶] (A) any action voluntarily taken in good faith to restrict access to
    or availability of material that the provider or user considers to be obscene, lewd,
    lascivious, filthy, excessively violent, harassing, or otherwise objectionable,
    whether or not such material is constitutionally protected; or [¶] (B) any action
    taken to enable or make available to information content providers or others the
    technical means to restrict access to material described in paragraph (1).” Yelp’s
    claim of immunity invokes section 230(c)(1), not section 230(c)(2).
    13
    development of information provided through the Internet or any other interactive
    computer service.” (§ 230(f)(3).)
    B. Judicial Construction of Section 230
    The immunity provisions within section 230 “have been widely and
    consistently interpreted to confer broad immunity against defamation liability for
    those who use the Internet to publish information that originated from another
    source.” (
    Barrett, supra
    , 40 Cal.4th at p. 39; accord, Doe v. MySpace, Inc. (5th
    Cir. 2008) 
    528 F.3d 413
    , 418 [“[c]ourts have construed the immunity provisions in
    § 230 broadly in all cases arising from the publication of user-generated content”];
    Carafano v. Metrosplash.com, 
    Inc., supra
    , 339 F.3d at p. 1123 [“reviewing courts
    have treated § 230(c) immunity as quite robust”].) Although a full review of the
    substantial body of case law interpreting section 230 is unnecessary to resolve this
    case, an overview of certain leading decisions follows.
    1. Zeran
    Section 230 was the subject of an early and influential construction in
    
    Zeran, supra
    , 
    129 F.3d 327
    . (See 
    Barrett, supra
    , 40 Cal.4th at p. 41 [describing
    Zeran as “[t]he leading case on section 230 immunity”].) The lawsuit in Zeran
    involved messages posted on an America Online, Inc. (AOL) online bulletin
    board. (Zeran, at p. 329.) These messages promoted t-shirts, bumper stickers, and
    key chains bearing offensive content, and added that anyone interested in
    purchasing one of these items should contact the plaintiff at his home phone
    number. (Ibid.) As a result of these posts, the plaintiff — who in fact had no
    connection to the wares — was inundated by angry phone calls, including death
    threats. (Ibid.) The plaintiff subsequently brought a negligence claim against
    AOL, alleging that AOL took an unreasonably long time to remove the messages,
    “refused to post retractions of those messages, and failed to screen for similar
    postings thereafter.” (Id., at p. 328.)
    14
    AOL claimed immunity under section 230. (
    Zeran, supra
    , 129 F.3d at
    p. 328.) In affirming a grant of judgment on the pleadings entered in favor of
    AOL on this ground (id., at p. 330), the federal court of appeals in Zeran
    emphasized the broad parameters of the statutory grant of immunity. The court
    observed, “By its plain language, § 230 creates a federal immunity to any cause of
    action that would make service providers liable for information originating with a
    third-party user of the service. Specifically, § 230 precludes courts from
    entertaining claims that would place a computer service provider in a publisher’s
    role. Thus, lawsuits seeking to hold a service provider liable for its exercise of a
    publisher’s traditional editorial functions — such as deciding whether to publish,
    withdraw, postpone or alter content — are barred.” (Ibid.) The Zeran court
    continued, “The purpose of this statutory immunity is not difficult to discern.
    Congress recognized the threat that tort-based lawsuits pose to freedom of speech
    in the new and burgeoning Internet medium. The imposition of tort liability on
    service providers for the communications of others represented, for Congress,
    simply another form of intrusive government regulation of speech. Section 230
    was enacted, in part, to maintain the robust nature of Internet communication and,
    accordingly, to keep government interference in the medium to a minimum.”
    (Ibid.)
    The plaintiff in 
    Zeran, supra
    , 
    129 F.3d 327
    , argued that section 230 should
    be read narrowly, so that AOL could be held liable as a “distributor” of the online
    posts. (Zeran, at pp. 331-332.) In rejecting this limited view of section 230
    immunity, the Zeran court stressed that if the notice-based legal standard for
    defamation liability that applies to distributors of printed information was
    transplanted to the Internet, it would place online intermediaries in an untenable
    position. “If computer service providers were subject to distributor liability,” the
    court observed, “they would face potential liability each time they receive notice
    15
    of a potentially defamatory statement — from any party, concerning any message.
    Each notification would require a careful yet rapid investigation of the
    circumstances surrounding the posted information, a legal judgment concerning
    the information’s defamatory character, and an on-the-spot editorial decision
    whether to risk liability by allowing the continued publication of that information.
    Although this might be feasible for the traditional print publisher, the sheer
    number of postings on interactive computer services would create an impossible
    burden in the Internet context.” (Zeran, at p. 333.) In the same vein, the court
    also stressed that “notice-based liability for interactive computer service providers
    would provide third parties with a no-cost means to create the basis for future
    lawsuits. Whenever one was displeased with the speech of another party
    conducted over an interactive computer service, the offended party could simply
    ‘notify’ the relevant service provider, claiming the information to be legally
    defamatory.” (Ibid.)
    2. Kathleen R.
    Other courts have followed Zeran in adopting a broad view of section 230’s
    immunity provisions. (See 
    Barrett, supra
    , 40 Cal.4th at p. 39.) Several decisions
    by the Courts of Appeal of this state, for example, have advanced a similar
    understanding of section 230. (See, e.g., Doe II v. MySpace Inc. (2009) 
    175 Cal. App. 4th 561
    , 567-575 [section 230 immunity applies to tort claims against a
    social networking website, brought by minors who claimed that they had been
    assaulted by adults they met on that website]; Delfino v. Agilent Technologies, Inc.
    (2007) 
    145 Cal. App. 4th 790
    , 804-808 [section 230 immunity applies to tort claims
    against an employer that operated an internal computer network used by an
    employee to allegedly communicate threats against the plaintiff]; Gentry v. eBay,
    Inc. (2002) 
    99 Cal. App. 4th 816
    , 828-836 [section 230 immunity applies to tort and
    16
    statutory claims against an auction website, brought by plaintiffs who allegedly
    purchased forgeries from third party sellers on the website].)
    Among the decisions of the Courts of Appeal construing section 230, the
    ruling in Kathleen 
    R., supra
    , 
    87 Cal. App. 4th 684
    , is particularly relevant here, for
    as recognized by the Court of Appeal below, the court in Kathleen R. held that
    section 230 immunity extends to claims for injunctive relief.
    The plaintiff in Kathleen 
    R., supra
    , 
    87 Cal. App. 4th 684
    , filed suit against a
    city after her son, a minor, used computers at the city library to download sexually
    explicit photos from the Internet. (Id., at p. 690.) She brought claims under state
    and federal law. (Id., at p. 691.) The plaintiff sought injunctive relief in
    connection with all of her causes of action, with her state-law claims seeking to
    prevent the city “from acquiring or maintaining computers which allow people to
    access obscenity or minors to access harmful sexual matter; from maintaining any
    premises where minors have that ability; and from expending public funds on such
    computers.” (Ibid.)
    The court in Kathleen 
    R., supra
    , 
    87 Cal. App. 4th 684
    , held that section 230
    barred all of the plaintiff’s state-law claims, even insofar as they sought injunctive
    relief.10 (Kathleen R., at p. 698.) In reaching this result, the court expressly
    rejected the plaintiff’s position that section 230 immunity does not adhere to the
    extent that a plaintiff pursues declaratory or injunctive relief, as opposed to
    damages. (Kathleen R., at p. 698.) The court reasoned, “Section 230 provides
    broadly that ‘[n]o cause of action may be brought and no liability may be imposed
    under any State or local law that is inconsistent with this section.’ (§ 230(e)(3),
    italics added.) Thus, even if for purposes of section 230 ‘liability’ means only an
    award of damages [citation], the statute by its terms also precludes other causes of
    10     The court in Kathleen 
    R., supra
    , 
    87 Cal. App. 4th 684
    , rejected the plaintiff’s
    federal claim on a different ground. (Id., at pp. 698-702.)
    17
    action for other forms of relief.” (Kathleen R., at p. 698.) The court also observed
    that the plaintiff’s pursuit of injunctive relief, if it came to fruition, could “prevent
    [the city] from providing open access to the Internet on its library computers,”
    which would “contravene section 230’s stated purpose of promoting unfettered
    development of the Internet no less than her damage claims.” (Ibid.)
    3. Barrett
    In the one prior occasion we have had to construe section 230, we, too,
    have read its provisions as conferring broad immunity.
    In 
    Barrett, supra
    , 
    40 Cal. 4th 33
    , the plaintiffs sued for defamation after the
    defendant posted copies of an assertedly libelous article on two websites. (Id., at
    pp. 40-41.) The defendant had received the article from another individual via an
    e-mail. (Id., at p. 41.)
    In vacating an order entered by the superior court, which had granted the
    defendant’s motion to strike under the anti-SLAPP statute, the Court of Appeal in
    Barrett adopted the same narrow reading of the word “publisher” within section
    230(c)(1) that had been rejected by the court in Zeran — i.e., it construed section
    230 as being concerned only with preventing online intermediaries from being
    held liable under standards applicable to publishers, while leaving distributor
    liability, where appropriate, intact. In the view of the Court of Appeal in Barrett,
    when the defendant in that case reposted the article she had received from another
    online source, she acted as a distributor of this information. (
    Barrett, supra
    ,
    40 Cal.4th at p. 39.) This designation meant that the defendant could be held
    liable if she distributed a defamatory statement with notice of its libelous
    character. (Id., at pp. 39, 41, 44-45.)
    We reversed. Our unanimous majority opinion in 
    Barrett, supra
    ,
    
    40 Cal. 4th 33
    , rejected both the Court of Appeal’s interpretation of the term
    “publisher” within section 230(c)(1), and a comparably constrained construction
    18
    of the term “user” within that same subsection that would distinguish between
    “passive” users who could claim section 230 immunity and “active” users who
    could not. (Barrett, at p. 63.) As had the Zeran court, we declined to read section
    230(c)(1) as leaving Internet intermediaries subject to liability on the same terms
    applicable to distributors of printed material. Instead, we endorsed as “sound”
    Zeran’s construction of “publisher” (Barrett, at p. 48), and adopted a similarly
    “inclusive” interpretation of that word (id., at p. 49). We observed, “the terms of
    section 230(c)(1) . . . reflect the intent to promote active screening by service
    providers of online content provided by others. Congress implemented its
    intent . . . by broadly shielding all providers from liability for ‘publishing’
    information received from third parties. Congress contemplated self-regulation,
    rather than regulation compelled at the sword point of tort liability.” (Id., at p. 53,
    fn. omitted.) Later, we reiterated that section 230 confers “blanket immunity from
    tort liability for online republication of third party content.” (Barrett, at p. 57.)11
    Our analysis in 
    Barrett, supra
    , 
    40 Cal. 4th 33
    , also elaborated upon
    Congress’s intent in enacting section 230, and the practical consequences
    associated with a cramped construction of the statute. We explained, “It is
    inaccurate to suggest that Congress was indifferent to free speech protection when
    it enacted section 230,” given the statute’s many findings extolling the value of
    Internet speech and evincing legislators’ interest in further development of this
    forum. (Barrett, at p. 56.) We also noted that “[t]he provisions of section
    230(c)(1), conferring broad immunity on Internet intermediaries, are themselves a
    11      
    Barrett, supra
    , 
    40 Cal. 4th 33
    , was clear that section 230 immunity is broad
    — not all-encompassing. We recognized, for example, that “[a]t some point,
    active involvement in the creation of a defamatory Internet posting would expose
    [an otherwise immunized] defendant to liability as an original source.” (Barrett, at
    p. 60, fn. 19; see also § 230(e)(1), (2), (4), (5) [describing areas of the law as to
    which section 230 immunity has no effect].)
    19
    strong demonstration of legislative commitment to the value of maintaining a free
    market for online expression.” (Ibid.) A limited construction of section 230
    would conflict with Congress’s goal of facilitating online discourse, we observed,
    because “subjecting Internet service providers and users to defamation liability”
    for the republication of online content — even under the standards applicable to
    distributors — “would tend to chill online speech.” (Barrett, at p. 56, citing
    Carafano v. Metrosplash.com, 
    Inc., supra
    , 339 F.3d at pp. 1123-1124, Batzel v.
    Smith (9th Cir. 2003) 
    333 F.3d 1018
    , 1027-1028, Noah v. AOL Time Warner, 
    Inc., supra
    , 261 F.Supp.2d at p. 538, Blumenthal v. Drudge (D.D.C. 1998) 
    992 F. Supp. 44
    , 52, Donato v. Moldow (N.J.Super.Ct.App.Div. 2005) 
    865 A.2d 711
    , 726.)
    This chilling effect could materialize for reasons including the fact that “[a]ny
    investigation of a potentially defamatory Internet posting is . . . a daunting and
    expensive challenge.” (Id., at p. 57.)
    In closing, our opinion in 
    Barrett, supra
    , 
    40 Cal. 4th 33
    , voiced some
    qualms about the result it reached. It explained that “[w]e share the concerns of
    those who have expressed reservations about the Zeran court’s broad
    interpretation of section 230 immunity. The prospect of blanket immunity for
    those who intentionally redistribute defamatory statements on the Internet has
    disturbing implications.” (Id., at pp. 62-63.) But, we added, these concerns were
    of no legal consequence, because the tools of statutory interpretation compelled a
    broad construction of section 230. (Barrett, at p. 63.)
    C. Analysis
    In construing section 230, we apply our standard approach to statutory
    interpretation. “ ‘When we interpret a statute, “[o]ur fundamental task . . . is to
    determine the Legislature’s intent so as to effectuate the law’s purpose. We first
    examine the statutory language, giving it a plain and commonsense meaning. We
    do not examine that language in isolation, but in the context of the statutory
    20
    framework as a whole in order to determine its scope and purpose and to
    harmonize the various parts of the enactment. If the language is clear, courts must
    generally follow its plain meaning unless a literal interpretation would result in
    absurd consequences the Legislature did not intend. If the statutory language
    permits more than one reasonable interpretation, courts may consider other aids,
    such as the statute’s purpose, legislative history, and public policy.” [Citation.]
    “Furthermore, we consider portions of a statute in the context of the entire statute
    and the statutory scheme of which it is a part, giving significance to every word,
    phrase, sentence, and part of an act in pursuance of the legislative
    purpose.” ’ [Citation.]” (City of San Jose v. Superior Court (2017) 2 Cal.5th 608,
    616-617.)
    Our analysis of the statute begins with an uncontroversial observation:
    Yelp could have promptly sought and received section 230 immunity had
    plaintiffs originally named it as a defendant in this case. There is no doubt that
    Yelp is a “provider or user of an interactive computer service” within the meaning
    of section 230(c)(1) (see Barnes v. Yahoo!, Inc. (9th Cir. 2009) 
    570 F.3d 1096
    ,
    1101 [concluding that as an operator of a website, Yahoo acts as a provider of an
    interactive computer service]), or that the substance of the reviews was provided
    to Yelp by “another information content provider” (§ 230(c)(1); see Shiamili v.
    Real Estate Group of New York, Inc. (N.Y. 2011) 
    952 N.E.2d 1011
    , 1019-1020).
    Had plaintiffs’ claims for defamation, intentional infliction of emotional distress,
    and false light been alleged directly against Yelp, these theories would be readily
    understood as treating Yelp as the “publisher or speaker” of the challenged
    reviews. (See, e.g., 
    Barrett, supra
    , 40 Cal.4th at p. 63 [section 230 applies to
    claims for defamation]; Bennett v. Google, LLC (D.C. Cir. 2018) 
    882 F.3d 1163
    ,
    1164, 1169 [section 230 applies to claims for intentional infliction of emotional
    distress]; Jones v. Dirty World Entertainment Recordings LLC (6th Cir. 2014) 755
    
    21 F.3d 398
    , 402, 417 [section 230 applies to claims for defamation, intentional
    infliction of emotional distress, and false light].) This immunity, moreover, would
    have shielded Yelp from the injunctive relief that plaintiffs seek. (See Kathleen
    
    R., supra
    , 87 Cal.App.4th at p. 687; Noah v. AOL Time Warner, 
    Inc., supra
    , 261
    F.Supp.2d at pp. 539-540; Smith v. Intercosmos Media Group, 
    Inc., supra
    , 
    2002 WL 31844907
    at pp. *4-*5; Medytox Solutions, Inc. v. Investorshub.com, 
    Inc., supra
    , 152 So.3d at p. 731.)
    The question here is whether a different result should obtain because
    plaintiffs made the tactical decision not to name Yelp as a defendant. Put another
    way, we must decide whether plaintiffs’ litigation strategy allows them to
    accomplish indirectly what Congress has clearly forbidden them to achieve
    directly. We believe the answer is no.
    Even though plaintiffs did not name Yelp as a defendant, their action
    ultimately treats it as “the publisher or speaker of . . . information provided by
    another information content provider.” (§ 230(c)(1).) With the removal order,
    plaintiffs seek to overrule Yelp’s decision to publish the three challenged reviews.
    Where, as here, an Internet intermediary’s relevant conduct in a defamation case
    goes no further than the mere act of publication — including a refusal to depublish
    upon demand, after a subsequent finding that the published content is libelous —
    section 230 prohibits this kind of directive. (See 
    Barrett, supra
    , 40 Cal.4th at pp.
    48, 53; 
    Zeran, supra
    , 129 F.3d at p. 330 [under section 230, “lawsuits seeking to
    hold a service provider liable for its exercise of a publisher’s traditional editorial
    functions — such as deciding whether to publish, withdraw, postpone or alter
    content — are barred”]; Medytox Solutions, Inc. v. Investorshub.com, 
    Inc., supra
    ,
    152 So.3d at p. 731 [“[a]n action to force a website to remove content on the sole
    22
    basis that the content is defamatory is necessarily treating the website as a
    publisher, and is therefore inconsistent with section 230”].)12
    Plaintiffs assert in their briefing that “Yelp’s duty to comply [with the
    removal order] does not arise from its status as a publisher or speaker, but as a
    party through whom the court must enforce its order.” To plaintiffs, “the removal
    order simply prohibits Yelp from continuing to be the conduit through which Bird
    violates her injunction.” Just as other courts have rebuffed attempts to avoid
    section 230 through the “creative pleading” of barred claims (Kimzey v. Yelp! Inc.
    (9th Cir. 2016) 
    836 F.3d 1263
    , 1266), we are not persuaded by plaintiffs’
    description of the situation before the court. It is true that plaintiffs obtained a
    default judgment and injunction in a lawsuit that named only Bird as a defendant.
    12      Although not directly pertinent to this case, we observe that in another
    instance where Congress became aware of procedural end-runs around section
    230, it took steps to rein in these practices — instead of regarding a judgment so
    obtained as a fait accompli that must be enforced, without further consideration of
    the circumstances surrounding it.
    Specifically, in 2010 Congress enacted the Securing the Protection of Our
    Enduring and Established Constitutional Heritage Act (SPEECH Act), 28 U.S.C.
    § 4101 et seq. This measure responded to concerns that defamation judgments
    were being obtained in countries that did not recognize the same free-speech
    protections as those provided in the United States, “significantly chilling
    American free speech and restricting both domestic and worldwide access to
    important information” in the United States. (Sen.Rep. No. 111-224, 2d Sess., p. 2
    (2010).)
    To combat forum shopping and “ensure that American authors, reporters,
    and publishers have nationwide protection from foreign libel judgments”
    (Sen.Rep. No. 
    111-224, supra
    , at p. 2), the SPEECH Act includes provisions such
    as one providing that “[n]otwithstanding any other provision of Federal or State
    law, a domestic court shall not recognize or enforce a foreign judgment for
    defamation against the provider of an interactive computer service, as defined in
    section 230 of the Communications Act of 1934 (47 U.S.C. [§] 230) unless the
    domestic court determines that the judgment would be consistent with section 230
    if the information that is the subject of such judgment had been provided in the
    United States.” (28 U.S.C. § 4102(c)(1).)
    23
    And it is also true that as a general rule, when an injunction has been obtained,
    certain nonparties may be required to comply with its terms. (See, e.g., Ross v.
    Superior 
    Court, supra
    , 19 Cal.3d at p. 906.) But this principle does not supplant
    the inquiry that section 230(c)(1) requires. Parties and nonparties alike may have
    the responsibility to comply with court orders, including injunctions. But an order
    that treats an Internet intermediary “as the publisher or speaker of any information
    provided by another information content provider” nevertheless falls within the
    parameters of section 230(c)(1). (Cf. Giordano v. Romeo (Fla.Dist.Ct.App. 2011)
    
    76 So. 3d 1100
    , 1102 [recognizing that an online intermediary may claim section
    230 immunity from injunctive relief associated with a defamation claim,
    notwithstanding a lower-court determination that at least part of the challenged
    online post was defamatory].) In substance, Yelp is being held to account for
    nothing more than its ongoing decision to publish the challenged reviews. Despite
    plaintiffs’ generic description of the obligation they would impose on Yelp, in this
    case this duty is squarely derived from “the mere existence of the very relationship
    that Congress immunized from suit.” (Klayman v. Zuckerberg (D.C. Cir. 2014)
    
    753 F.3d 1354
    , 1360.)13
    At the same time, we recognize that not all legal duties owed by Internet
    intermediaries necessarily treat them as the publishers of third party content, even
    when these obligations are in some way associated with their publication of this
    13     In arguing that section 230 immunity should not apply, Justice Liu
    emphasizes that here there was a judicial determination — albeit through an
    uncontested proceeding — that the challenged reviews are defamatory. (Dis. opn.
    of Liu, J., post, at pp. 2-3.) We recognize that in applying section 230 a distinction
    could, in theory, be drawn between situations in which an injunction (or its
    extension to a nonparty) follows from a judicial finding of some kind, and
    scenarios where there has been no such determination. But we see no persuasive
    indication that this is a distinction Congress wanted courts to regard as decisive in
    circumstances such as these. (Accord, Giordano v. 
    Romeo, supra
    , 76 So.3d at
    p. 1102.)
    24
    material. (See, e.g., Barnes v. Yahoo!, 
    Inc., supra
    , 570 F.3d at p. 1107 [regarding
    section 230 immunity as inapplicable to a claim of promissory estoppel alleging
    that an Internet intermediary promised to remove offensive content].) In this case,
    however, Yelp is inherently being treated as the publisher of the challenged
    reviews, and it has not engaged in conduct that would take it outside section 230’s
    purview in connection with the removal order. The duty that plaintiffs would
    impose on Yelp, in all material respects, wholly owes to and coincides with the
    company’s continuing role as a publisher of third party online content.
    In his dissent, Justice Cuéllar argues that even if the injunction cannot on its
    face command Yelp to remove the reviews, the removal order nevertheless could
    run to Yelp through Bird under an aiding and abetting theory premised on conduct
    that remains inherently that of a publisher. (See dis. opn. of Cuéllar, J., post, at
    pp. 3, 20-22, 34-37.) We disagree. As applied to such behavior, Justice Cuéllar’s
    approach would simply substitute one end-run around section 230 immunity for
    another. (Accord, Blockowicz v. Williams (7th Cir. 2010) 
    630 F.3d 563
    , 568.) As
    for the other scenarios involving materially different types of conduct that Justice
    Cuéllar might hypothesize, such as conspiracies between a named party and an
    Internet republisher who has not been named as a party, it suffices for now to say
    that they are not before this court, and we have no occasion to consider whether
    they could lead to some remedy vis-à-vis the republisher.14
    14     As previously noted, when the trial court denied Yelp’s motion to set aside
    and vacate the judgment, it emphasized several facts that, in the court’s opinion,
    indicated Yelp was aiding and abetting Bird’s violation of the injunction. The
    court observed that Yelp had featured at least one of Bird’s defamatory reviews as
    a “Recommended Review”; that Yelp had not factored some positive reviews into
    the Hassell Law Group’s overall rating; that Yelp had raised arguments in
    connection with its motion that would invalidate the judgment entirely, as opposed
    to merely the portion of the removal order specifically directed at it; and that Yelp
    25
    Plaintiffs also assert that Yelp cannot claim section 230 immunity because,
    under section 230(e)(3), no “cause of action” has been alleged directly against it as
    a defendant, and in their view making Yelp subject to an injunction does not
    amount to the imposition of “liability.” This argument reads constraining force
    into the language within section 230(e)(3) that provides, “No cause of action may
    be brought and no liability may be imposed under any State or local law that is
    inconsistent with this section.” This phrasing does not provide strong support for,
    much less compel, plaintiffs’ construction. Section 230(e)(3) does not expressly
    demand that a cause of action always must be alleged directly against an Internet
    intermediary as a named defendant for the republisher to claim immunity under
    the statute. And in common legal parlance at the time of section 230’s enactment,
    “liability” could encompass more than merely the imposition of damages. (See
    Black’s Law Dict. (6th ed. 1990) p. 914 [defining “liability” as “a broad legal
    term” that “has been referred to as of the most comprehensive significance,
    refused to remove the reviews at issue, “notwithstanding a judicial finding that
    Bird’s reviews are defamatory.”
    Even though it upheld the removal order in most respects, the Court of
    Appeal did not rely on an aiding and abetting theory to justify the extension of the
    injunction to Yelp. (See Hassell v. 
    Bird, supra
    , 247 Cal.App.4th at p. 1364.) We
    expressly reject the argument, offered by Justice Cuéllar in his dissent (dis. opn. of
    Cuéllar, J., post, at p. 35), that the circumstances stressed by the trial court (plus,
    perhaps, Yelp’s letter to Hassell, in which it explained its decision not to remove
    the reviews) might somehow serve to deprive Yelp of immunity. Most of these
    facts involve what are clearly publication decisions by Yelp. (See, e.g., Jones v.
    Dirty World Entertainment Recordings 
    LLC, supra
    , 755 F.3d at pp. 414-415.)
    Meanwhile, we do not regard the letter relating the basis for Yelp’s decision, or
    Yelp’s failure to make only pinpoint challenges to the injunction in court, as
    somehow transforming the company into something other than a publisher of third
    party content for purposes of the removal order. Section 230 immunity is not that
    fragile.
    26
    including almost every character of hazard or responsibility, absolute, contingent,
    or likely”].)15
    Even more fundamentally, plaintiffs’ interpretation misses the forest for the
    trees. Section 230(e)(3) underscores, rather than undermines, the broad scope of
    section 230 immunity by prohibiting not only the imposition of “liability” under
    certain state-law theories, but also the pursuit of a proscribed “cause of action.”
    (See Nemet Chevrolet, Ltd. v. Consumeraffairs.com, Inc. (4th Cir. 2009) 
    591 F.3d 250
    , 254 [section 230 is not just a “ ‘defense to liability’ ”; it instead confers
    “ ‘immunity from suit’ ” (italics omitted)]; Medytox Solutions, Inc. v.
    Investorshub.com, 
    Inc., supra
    , 152 So.3d at p. 731.) This inclusive language, read
    in connection with section 230(c)(1) and the rest of section 230, conveys an intent
    to shield Internet intermediaries from the burdens associated with defending
    against state-law claims that treat them as the publisher or speaker of third party
    content, and from compelled compliance with demands for relief that, when
    viewed in the context of a plaintiff’s allegations, similarly assign them the legal
    role and responsibilities of a publisher qua publisher. (See 
    Barrett, supra
    , 40
    Cal.4th at pp. 53, 56, 57; Barnes v. Yahoo!, 
    Inc., supra
    , 570 F.3d at pp. 1101-
    1102; 
    Zeran, supra
    , 129 F.3d at p. 330.) As evidenced by section 230’s findings,
    Congress believed that this targeted protection for republishers of online content
    15      Justice Cuéllar would define “liability” within section 230(e)(3) as “a
    financial or legal obligation.” (Dis. opn. of Cuéllar, J., post, at p. 11.) His
    dissenting opinion then proceeds as if the broad word “legal” within this very
    definition is irrelevant. This oversight is in a sense understandable, because,
    inconveniently, plaintiffs absolutely regard Yelp as having a “legal obligation” to
    comply with the removal order.
    Yet Justice Cuéllar’s equation of “liability” under section 230(e)(3) with
    only financial obligations raises other questions that cannot be satisfactorily
    answered. Among them, if “liability” involves only financial debts, it is unclear
    why Congress recently felt the need to exclude from section 230 immunity certain
    state-law criminal actions associated with sex trafficking. (§ 230(e)(5)(B), (C).)
    27
    would facilitate the ongoing development of the Internet. (See § 230(a)(1), (a)(4),
    (b)(1), (b)(2).)
    These interests are squarely implicated in this case. An injunction like the
    removal order plaintiffs obtained can impose substantial burdens on an Internet
    intermediary. Even if it would be mechanically simple to implement such an
    order, compliance still could interfere with and undermine the viability of an
    online platform. (See Noah v. AOL Time Warner, 
    Inc., supra
    , 261 F.Supp.2d at
    p. 540 [“in some circumstances injunctive relief will be at least as burdensome to
    the service provider as damages, and is typically more intrusive”].) Furthermore,
    as this case illustrates, a seemingly straightforward removal order can generate
    substantial litigation over matters such as its validity or scope, or the manner in
    which it is implemented. (See 
    Barrett, supra
    , 40 Cal.4th at p. 57.) Section 230
    allows these litigation burdens to be imposed upon the originators of online
    speech. But the unique position of Internet intermediaries convinced Congress to
    spare republishers of online content, in a situation such as the one here, from this
    sort of ongoing entanglement with the courts.16
    16      There are numerous reasons why a removal order that appears facially valid
    may nevertheless be challenged by an Internet intermediary as illegitimate. As
    detailed in the amicus curiae brief submitted by Professor Eugene Volokh, a
    document that purports to represent a proper removal order might have been
    fraudulently obtained, secured after only meager attempts at service, or represent a
    forgery. A removal order also may be overbroad (as Bird claims to be the case
    here), or otherwise inaccurate or misleading.
    Professor Volokh’s brief incorporates a request for judicial notice of court
    filings that assertedly illustrate these concerns. We denied this request for judicial
    notice by a separate order. Formal notice is unnecessary to recognize the basic
    point being made — to wit, that plaintiffs’ position, if accepted, would open the
    door to fraud and to sharp litigating tactics. (See People v. Acosta (2002) 
    29 Cal. 4th 105
    , 119, fn. 5 [denying a request for judicial notice of case files because
    such notice “is not necessary . . . to envision” the general circumstances evinced in
    the cases].)
    28
    To summarize, we conclude that in light of Congress’s designs with respect
    to section 230, the capacious language Congress adopted to effectuate its intent,
    and the consequences that could result if immunity were denied here, Yelp is
    entitled to immunity under the statute. Plaintiffs’ attempted end-run around
    section 230 fails.17
    The dissents see this case quite differently. The dissenting justices would
    endorse plaintiffs’ gambit as consistent with Congress’s intent in enacting section
    230. We disagree on several levels with the dissents’ construction of section
    230.18 The narrow, grudging view of section 230’s immunity provisions advanced
    in both dissents is at odds with this court’s analysis in Barrett, and for that matter
    with the views of virtually all courts that have construed section 230. Although
    Justice Cuéllar, in his dissent, repeatedly suggests that Yelp somehow improperly
    or prematurely injected itself into this action in a manner material to the necessary
    analysis (e.g., dis. opn. of Cuéllar, J., post, at pp. 6, 25, 26), with this case’s
    17     Other shortcomings of plaintiffs’ approach further expose it as something
    quite different from what Congress intended. These include the fact that even if it
    were accepted, plaintiffs’ vehicle for avoiding section 230 immunity would offer
    no remedy for those wronged by authors who write anonymously or using a
    pseudonym, and whose identities cannot be ascertained through third party
    discovery in cases filed against Doe defendants. For in those instances, no
    judgments, default or otherwise, could be obtained against the authors. (See Code
    Civ. Proc., § 474; Flythe v. Solomon and Straus, LLC (E.D.Pa., June 8, 2011, No.
    09-6120) 
    2011 WL 2314391
    at *1 [“default judgments cannot be entered against
    unnamed or fictitious parties because they have not been properly served”].)
    18     We also dispute Justice Cuéllar’s characterizations of various aspects of
    this opinion. Yet we see no need to address each of the numerous instances where
    his dissent misstates our views. It is enough to recall former Justice Werdegar’s
    observation that “[c]haracterization by the . . . dissenters of the scope of the
    majority opinion is, of course, dubious authority.” (People v. Caballero (2012) 
    55 Cal. 4th 262
    , 271 (conc. opn. of Werdegar, J.).)
    29
    unusual litigation posture — which was engineered by plaintiffs, not Yelp — it
    was perfectly appropriate for Yelp to seek clarification of its legal obligations
    before plaintiffs chose to initiate contempt proceedings against it. Additionally,
    although the dispositive nature of Yelp’s section 230 argument makes it
    unnecessary to dwell on the due process concerns addressed by Justice Kruger in
    her concurring opinion (see generally conc. opn. of Kruger, J., post), at a bare
    minimum we find it troubling that the dissents’ approach, if it were the law, could
    create unfortunate incentives for plaintiffs to provide little or no prejudgment
    notice to persons or entities that could assert immunity as defendants. A plaintiff
    might reason that if even informal notice were provided, a nonparty republisher
    might seek to intervene as a defendant and claim immunity prior to the entry of
    judgment.19
    Perhaps the dissenters’ greatest error is that they fail to fully grasp how
    plaintiffs’ maneuver, if accepted, could subvert a statutory scheme intended to
    promote online discourse and industry self-regulation. What plaintiffs did in
    attempting to deprive Yelp of immunity was creative, but it was not difficult. If
    plaintiffs’ approach were recognized as legitimate, in the future other plaintiffs
    could be expected to file lawsuits pressing a broad array of demands for injunctive
    relief against compliant or default-prone original sources of allegedly tortious
    online content. Injunctions entered incident to the entry of judgments in these
    19     Justice Cuéllar’s dissenting opinion could be construed as allowing an
    injunction that on its face runs only against a party to be enforced, via a feeble
    aiding and abetting theory, against a different person or entity that also had been
    named as a party, but had successfully invoked section 230 immunity prior to the
    entry of judgment. (See, e.g., dis. opn. of Cuéllar, J., post, at pp. 34-37.) If that
    were the law, Justice Cuéllar would be correct that the incentive to intervene might
    be dampened because the invocation of section 230 immunity might have little
    practical effect in the long run. But it is not the law.
    30
    cases then would be interposed against providers or users of interactive computer
    services who could not be sued directly, due to section 230 immunity. As evinced
    by the injunction sought in Kathleen 
    R., supra
    , 
    87 Cal. App. 4th 684
    , which
    demanded nothing less than control over what local library patrons could view on
    the Internet (id., at p. 691), the extension of injunctions to these otherwise
    immunized nonparties would be particularly conducive to stifling, skewing, or
    otherwise manipulating online discourse — and in ways that go far beyond the
    deletion of libelous material from the Internet. Congress did not intend this result,
    any more than it intended that Internet intermediaries be bankrupted by damages
    imposed through lawsuits attacking what are, at their core, only decisions
    regarding the publication of third party content.
    For almost two decades, courts have been relying on section 230 to deny
    plaintiffs injunctive relief when their claims inherently treat an Internet
    intermediary as a publisher or speaker of third party conduct. Certainly in some
    instances where immunity has been recognized prior to judgment, the plaintiff was
    in fact defamed or otherwise suffered tortious harm susceptible to being remedied
    through an injunction. Yet Congress has declined to amend section 230 to
    authorize injunctive relief against mere republishers, even as it has limited
    immunity in other ways. (See Pub.L.No. 115-164, §4 (April 11, 2018) 132 Stat.
    1253 [amending section 230 to add section 230(e)(5), clarifying that immunity
    does not apply to certain civil claims and criminal actions associated with sex
    trafficking].) Although this acquiescence is not itself determinative, it provides a
    final indication that the dissenting justices are simply substituting their judgment
    for that of Congress regarding what amounts to good policy with regard to online
    speech. But that is not our role.
    Even as we conclude that Yelp is entitled to immunity, we echo 
    Barrett, supra
    , 
    40 Cal. 4th 33
    , in emphasizing that our reasoning and result do not connote
    31
    a lack of sympathy for those who may have been defamed on the Internet.
    (Barrett, at p. 63.) Nevertheless, on this record it is clear that plaintiffs’ legal
    remedies lie solely against Bird, and cannot extend — even through an injunction
    — to Yelp.
    On this last point, we observe that plaintiffs still have powerful, if
    uninvoked, remedies available to them. Our decision today leaves plaintiffs’
    judgment intact insofar as it imposes obligations on Bird. Even though neither
    plaintiffs nor Bird can force Yelp to remove the challenged reviews, the judgment
    requires Bird to undertake, at a minimum, reasonable efforts to secure the removal
    of her posts. A failure to comply with a lawful court order is a form of civil
    contempt (Code Civ. Proc., §1209, subd. (a)(5)), the consequences of which can
    include imprisonment (see In re Young (1995) 
    9 Cal. 4th 1052
    , 1054). Much of the
    dissents’ rhetoric regarding the perceived injustice of today’s decision assumes
    that plaintiffs’ remaining remedies will be ineffective. One might more readily
    conclude that the prospect of contempt sanctions would resonate with a party who,
    although not appearing below, has now taken the step of filing an amicus curiae
    brief with this court.
    32
    III.   DISPOSITION
    For the foregoing reasons, section 230 immunity applies here. We
    therefore reverse the judgment of the Court of Appeal insofar as it affirmed the
    trial court’s denial of Yelp’s motion to set aside and vacate the judgment. That
    motion should have been granted to the extent that it sought to delete from the
    order issued upon entry of the default judgment any requirement that Yelp
    remove the challenged reviews or subsequent comments of the reviewers. The
    cause is remanded for further proceedings as appropriate in light of this court’s
    disposition.
    CANTIL-SAKAUYE, C. J.
    WE CONCUR:
    CHIN, J.
    CORRIGAN, J.
    33
    CONCURRING OPINION BY KRUGER, J.
    I concur in the judgment. I agree with the plurality opinion that the
    injunction against Yelp Inc. (Yelp) is invalid, but I begin with a more basic reason.
    Yelp is not a party to this litigation, and the courts’ power to order people to do (or
    to refrain from doing) things is generally limited to the parties in the case.
    Although there are qualifications to the rule, there is no exception that permits the
    sort of order we confront here: an order directing a nonparty website operator to
    remove third party user content just in case the user defaults on her own legal
    obligation to remove it. Before Yelp can be compelled to remove content from its
    website, the company is entitled to its own day in court.
    The plurality opinion instead concludes the injunction is invalid because it
    violates section 230 of title 47 of the United States Code, part of the federal
    Communications Decency Act of 1996 (Pub.L. No. 104-104 (Feb. 8, 1996) 110
    Stat. 56; hereafter section 230), a statute that bars civil suit against website
    operators like Yelp for permitting third parties to post content on their sites.
    Although I believe it is unnecessary to reach the issue, I agree with the plurality
    opinion that even if it were permissible to enter an injunction against a nonparty
    website operator based solely on its past decision to permit the defendant to post
    content on its website, the operator would be entitled to section 230 immunity in
    that proceeding. I express no view on how section 230 might apply to a different
    request for injunctive relief based on different justifications.
    1
    I.
    A.
    Although the plurality opinion begins its analysis with the special immunity
    conferred on interactive computer service providers in section 230, I would begin
    with legal principles of considerably older vintage. It is an “elementary common
    law principle of jurisprudence”—followed in California, as elsewhere—that “a
    judgment may not be entered either for or against one not a party to an action or
    proceeding.” (Fazzi v. Peters (1968) 
    68 Cal. 2d 590
    , 594.) A court’s power is
    limited to adjudicating disputes between persons who have been designated as
    parties or made parties by service of process; it has “no power to adjudicate a
    personal claim or obligation unless it has jurisdiction over the person of the
    defendant.” (Zenith Corp. v. Hazeltine (1969) 
    395 U.S. 100
    , 110 (Zenith).) This
    common law principle is backed by the Constitution’s guarantee of procedural
    fairness—a guarantee that, at its core, entitles persons to meaningful notice and
    opportunity to be heard before a court fixes their legal rights and responsibilities.
    (Hansberry v. Lee (1940) 
    311 U.S. 32
    , 40.)
    Consistent with this principle, courts have long observed a general rule
    against entering injunctions against nonparties. An injunction is a “ ‘personal
    decree’ ” that “ ‘operates on the person of the defendant by commanding him to do
    or desist from certain action’ ” as a remedy for violations or threatened violations
    of the law. (Comfort v. Comfort (1941) 
    17 Cal. 2d 736
    , 741.) More than a century
    ago, the United States Supreme Court invalidated an injunction enjoining
    nonparties, explaining: “[W]e do not think it comports with well-settled principles
    of equity procedure to include [nonparties] in an injunction in a suit in which they
    were not heard or represented, or to subject them to penalties for contempt in
    disregarding such an injunction.” (Scott v. Donald (1897) 
    165 U.S. 107
    , 117.)
    Some decades later, the high court again invalidated an injunction as “clearly
    erroneous” insofar as it “assumed to make punishable as a contempt the conduct of
    persons who act independently and whose rights have not been adjudged
    2
    according to law.” (Chase National Bank v. Norwalk (1934) 
    291 U.S. 431
    , 436–
    437, fn. omitted.) And again, in 
    Zenith, supra
    , 395 U.S. at page 110, the high
    court ruled that the district court had erred in entering an injunction against an
    entity (there, the parent company of the named defendant) that “was not named as
    a party, was never served and did not formally appear at the trial.”
    Judge Learned Hand, in an oft-cited statement of the rule, explained its
    logic in this way: “[N]o court can make a decree which will bind any one but a
    party; a court of equity is as much so limited as a court of law; it cannot lawfully
    enjoin the world at large, no matter how broadly it words its decree. If it assumes
    to do so, the decree is pro tanto brutum fulmen, and the persons enjoined are free
    to ignore it. It is not vested with sovereign powers to declare conduct unlawful; its
    jurisdiction is limited to those over whom it gets personal service, and who
    therefore can have their day in court.” (Alemite Mfg. Corp. v. Staff (2d Cir. 1930)
    
    42 F.2d 832
    , 832–833 (Alemite).) The court in Alemite held that the district court
    had no power to issue an injunction against a former employee of the defendant
    because the former employee was not a party to the underlying action. (Ibid.)
    California courts, employing the same general principle, have reached similar
    conclusions in a variety of other scenarios. (People ex rel. Gwinn v. Kothari
    (2000) 
    83 Cal. App. 4th 759
    , 769 [“ ‘The courts . . . may not grant an . . . injunction
    so broad as to make punishable the conduct of persons who act independently and
    whose rights have not been adjudged according to law.’ ”]; People v. Conrad
    (1997) 
    55 Cal. App. 4th 896
    , 902 (Conrad) [“Injunctions are not effective against
    the world at large.”].)
    As all these authorities have recognized, while the law generally forbids
    courts from naming nonparties, the law does in certain circumstances permit a
    court to enforce an injunction against a nonparty. Without such a rule, enjoined
    parties could “play jurisdictional ‘shell games’ ”; that is, they could “nullify an
    injunctive decree by carrying out prohibited acts with or through nonparties to the
    original proceeding.” 
    (Conrad, supra
    , 55 Cal.App.4th at p. 902.) For that reason,
    3
    as this court observed more than a century ago, even though injunctions
    “[o]rdinarily” run only to the named parties in an action, it is “common practice to
    make the injunction run also to classes of persons through whom the enjoined
    party may act, such as agents, servants, employees, aiders, abetters, etc., though
    not parties to the action.” (Berger v. Superior Court (1917) 
    175 Cal. 719
    , 721
    (Berger).) “[S]uch parties violating its terms with notice thereof are held guilty of
    contempt for disobedience of the judgment.” (Ibid.; accord, e.g., Regal Knitwear
    Co. v. Board (1945) 
    324 U.S. 9
    , 14.)
    But under this general rule, while nonparties may be barred from acting on
    behalf of, or in concert with, a defendant in violating an injunction, they may not
    be barred from acting independently. The “whole effect” of the practice, we
    explained in Berger, “is simply to make the injunction effectual against all through
    whom the enjoined party may act, and to prevent the prohibited action by persons
    acting in concert with or in support of the claim of the enjoined party, who are in
    fact his aiders and abetters.” 
    (Berger, supra
    , 175 Cal. at p. 721.) Put differently,
    the practice permits a court to punish a nonparty for violating an injunction only
    “when he has helped to bring about, not merely what the decree has forbidden,
    because it may have gone too far, but what it has power to forbid, an act of a
    party.” 
    (Alemite, supra
    , 42 F.2d at p. 833, italics added.) To extend the court’s
    power beyond this point would authorize a court in effect to impose judgment
    without hearing, a result at odds with basic notions of procedural fairness.
    B.
    In the litigation underlying this appeal, plaintiffs sued defendant Ava Bird
    for posting allegedly defamatory reviews on Yelp. Bird did not respond, and after
    a prove-up hearing (Code Civ. Proc., § 585, subd. (b)), the trial court entered a
    default judgment against her. In addition to awarding other relief, the trial court
    ordered Bird to remove the offending reviews from Yelp. And then, apparently as
    4
    backup, the trial court ordered Yelp to do the same. 1 Until this point, Yelp was a
    stranger to the litigation; it had neither been named as a party nor served with
    process. And although plaintiffs had previously sent Yelp a copy of the
    complaint, the complaint neither named Yelp as a party defendant nor notified
    Yelp of their plans to seek injunctive relief against it. Unsurprisingly, then, Yelp
    did not participate in the proceedings. It did not learn of the injunction until
    plaintiffs served it with the court order.
    When Yelp was served, it promptly filed a motion to set aside and vacate
    the judgment. It argued, among other things, that the issuance of the injunction
    against it violated both due process and section 230. The trial court denied the
    motion. It reasoned that the injunction against Yelp was proper because Yelp is
    aiding and abetting Bird’s violation of the injunction by, among other things,
    1      In full, the trial court’s order reads:
    Plaintiffs’ Request for Injunctive Relief is Granted. Defendant AVA
    BIRD is ordered to remove each and every defamatory review
    published or caused to be published by her about plaintiffs HASSELL
    LAW GROUP and DAWN HASSELL from Yelp.com and from
    anywhere else they appear on the internet within 5 business days of
    the date of the court’s order.
    Defendant AVA BIRD, her agents, officers, employees or
    representatives, or anyone acting on her behalf, are further enjoined
    from publishing or causing to be published any written reviews,
    commentary, or descriptions of DAWN HASSELL or the HASSELL
    LAW GROUP on Yelp.com or any other internet location or website.
    Yelp.com is ordered to remove all reviews posted by AVA BIRD
    under user names “Birdzeye B.” and “J.D.” attached hereto as Exhibit
    A and any subsequent comments of these reviewers within 7 business
    days of the date of the court’s order.
    As the plurality opinion explains, we are here concerned only with the
    validity of the third paragraph of the order insofar as it requires Yelp to remove
    specified reviews from its website.
    5
    allowing the reviews to remain posted on the website. The Court of Appeal
    affirmed in pertinent part, though it pointedly declined to rely on the trial court’s
    findings that Yelp was aiding and abetting Bird’s noncompliance. The trial
    court’s aiding and abetting findings, the Court of Appeal ruled, were “premature”
    and “also potentially improper to the extent proceedings were conducted without
    the procedural safeguards attendant to a contempt proceeding.” (Hassell v. Bird
    (2016) 
    247 Cal. App. 4th 1336
    , 1354 (Hassell).) Instead, relying on Berger and
    subsequent cases, the court reasoned that the trial court has “the power to fashion
    an injunctive decree so that the enjoined party may not nullify it by carrying out
    the prohibited acts with or through a nonparty to the original proceeding,” and thus
    also has the power to direct Yelp “to effectuate the injunction against Bird.”
    (Hassell, at pp. 1356–1357.)
    The Court of Appeal’s reasoning reflects a misunderstanding of the scope
    of the trial court’s power to enjoin a nonparty. The common law rule described in
    Berger would have permitted the court to forbid Yelp and others from acting in
    concert with Bird, or on Bird’s behalf, to violate the court’s injunction against
    Bird. This is what it means to bind individuals “with or through” whom the
    enjoined party acts. 
    (Conrad, supra
    , 55 Cal.App.4th at p. 902.) But because Yelp
    was not a party to the case, it could not, consistent with the common law rule, be
    enjoined “from engaging in independent conduct with respect to the subject matter
    of th[e] suit.” (Additive Controls & Measurement Sys. v. Flowdata (Fed.Cir.
    1996) 
    96 F.3d 1390
    , 1395.) Here, the injunction expressly names Yelp and
    “impose[s] obligations directly on [it].” (Ibid.) The injunction requires Yelp to
    take action, regardless of whether it acts independently of or in concert with Bird
    in failing to remove the challenged reviews, and “to that extent is in error.”
    (Ibid.)2
    2      Justice Liu disputes the characterization; he argues that the injunction at
    issue does not forbid Yelp from engaging in independent conduct with respect to
    6
    Plaintiffs, as well as Justice Liu, argue that the injunction naming Yelp is
    valid because it merely makes explicit that Yelp, as an entity “through” whom
    Bird acts, is obligated to carry out the injunction on her behalf. (Dis. opn. of Liu,
    J., post, at pp. 4–6.) But the trial court made no finding that Bird acts, or has ever
    acted, “through” Yelp in the sense relevant under Berger, nor does the record
    contain any such indication; we have no facts before us to suggest that Yelp is
    Bird’s “agent” or “servant.” 
    (Berger, supra
    , 175 Cal. at p. 720.) It is true and
    undisputed, as plaintiffs and Justice Liu emphasize, that Bird’s statements were
    posted on Yelp’s website with Yelp’s permission. (Dis. opn. of Liu, J., post, at
    p. 6.) And as a practical matter, Yelp has the technological ability to remove the
    reviews from the site. These facts might well add up (at least absent section 230)
    to a good argument for filing suit against Yelp and seeking an injunctive remedy
    in the ordinary course of litigation. But the question presented here is whether
    these facts establish the sort of legal identity between Bird and Yelp that would
    justify binding Yelp, as a nonparty, to the outcome of litigation in which it had no
    meaningful opportunity to participate. Without more, I do not see how they could.
    (Cf., e.g., Paramount Pictures Corp. v. Carol Pub. Group, Inc. (S.D.N.Y. 1998)
    
    25 F. Supp. 2d 372
    , 375–376 (Paramount Pictures) [denying request to expand the
    scope of copyright infringement injunction to nonparties merely because the
    nonparties’ conduct “ ‘ may well be found [to render them] directly liable for
    copyright infringement’ ”].)3
    the subject matter of this lawsuit. (Dis. opn. of Liu, J., post, at pp. 4–5.) But of
    course it does: The order requires Yelp to remove Bird’s reviews even if, acting
    entirely independently of Bird, and “solely in pursuit of [its] own interests” (U.S.
    v. Hall (5th Cir. 1972) 
    472 F.2d 261
    , 264), Yelp chooses not to (thus potentially
    incurring its own defamation liability).
    3      I would note, moreover, that if the trial court had relied on the existence of
    an agency (or agency-like) relationship as a basis for issuing an injunction directly
    against Yelp, the company would have been entitled to notice and an opportunity
    to be heard on that issue. (See 
    Zenith, supra
    , 395 U.S. at p. 111 [invalidating
    7
    The nature of the injunction, as well as the relationship between Yelp and
    Bird, distinguishes this case from Ross v. Superior Court (1977) 
    19 Cal. 3d 899
    (Ross), on which the Court of Appeal relied. In Ross, an injunction was issued
    against state officials and their agents, requiring payment of welfare benefits that
    had been improperly withheld. Although state officials had ordered the counties
    administering the benefits to make the payments as the injunction required, one
    county’s board of supervisors refused and contempt proceedings were brought
    against them. The supervisors argued that they could not be bound by the
    injunction because they were not parties to the underlying action in which the
    injunction was issued. (Id. at pp. 902–903.) This court rejected the argument,
    explaining that, by statute, counties act on behalf of the state in administering
    welfare benefits, and thus are bound to carry out an order against the state
    concerning the administration of the benefits. (Id. at pp. 905–909.) In so holding,
    the court relied on In re Lennon (1897) 
    166 U.S. 548
    , in which the high court held
    in contempt a railway employee who refused to move cars of the defendant
    railway to comply with an injunction against the defendant, despite the
    defendant’s order to do so. (See Ross, at p. 905.)
    injunction premised on parent company’s status as “alter ego” of the defendant,
    where parent company had no opportunity to be heard].) Yelp received neither.
    Justice Liu argues that the injunction against Yelp was properly entered
    based on its “relationship to Bird’s tortious conduct,” but notes that Yelp “may
    yet” raise arguments to the contrary in a contempt proceeding. (Dis. opn. of
    Liu, J., post, at p. 9.) Here, Justice Liu appears to allude to the fact that in
    California (unlike some other jurisdictions) a person to whom an injunction
    applies is not barred from collaterally attacking the injunction’s validity in a
    contempt proceeding. (People v. Gonzalez (1996) 
    12 Cal. 4th 804
    , 818
    (Gonzalez).) This rule does mean that Yelp would have an opportunity to litigate
    its status as agent or aider and abettor of Bird’s noncompliance if the removal
    order were to stand. But the opportunity to collaterally attack the injunction could
    not, of course, make up for the court’s issuance of an overbroad injunction in the
    first instance.
    8
    The Court of Appeal appeared to read Ross to mean that a trial court has
    broad power to enjoin a nonparty with the practical ability to “effectuate” an
    injunction entered against a party. 
    (Hassell, supra
    , 247 Cal.App.4th at p. 1355.)
    But Ross (like Lennon before it) stands for a far more limited proposition: A
    party’s agent or servant, acting in his or her capacity as an agent or servant, is
    bound to comply with an injunction against the party. This is because the acts of
    the agent are imputed to the party; the agent’s failure to act as the law demands is
    the party’s failure, and it thus falls within the scope of the court’s power to punish.
    The same is not, however, true of an individual who acts independently. The law
    draws this distinction, as Judge Hand explained of Lennon, “for it is not the act
    described which the decree may forbid, but only that act when the defendant does
    it.” 
    (Alemite, supra
    , 42 F.2d at p. 833, italics added.) The nonparty who
    independently does, or fails to do, what the decree commands is entitled to his or
    her own day in court.
    C.
    Although plaintiffs, like the Court of Appeal, rely largely on a rule
    concerning a trial court’s power to forbid parties from nullifying an injunctive
    decree by carrying out prohibited acts through nonparties, their real concern does
    not appear to be that Bird is using or will use Yelp as a pawn to play
    “jurisdictional ‘shell games.’ ” 
    (Conrad, supra
    , 55 Cal.App.4th at p. 902.) Their
    concern instead appears to be that Bird will simply ignore the injunction—all on
    her own—and the offending reviews will remain visible unless and until Yelp
    takes independent action.
    The concern is a substantial one, but the usual remedy for such concerns is
    to sue for a determination of the third party’s legal obligation to do as plaintiffs
    wish. Plaintiffs have identified no instance in which a court has upheld the
    issuance of an injunction against a nonparty under remotely similar circumstances.
    Perhaps the closest plaintiffs have come is U.S. v. 
    Hall, supra
    , 
    472 F.2d 261
    , in
    which a federal court of appeals upheld the criminal contempt conviction of a
    9
    nonparty for interference with the operation of a school campus for purposes of
    obstructing implementation of a desegregation order. The nonparty’s actions, the
    court explained, “imperiled the court’s fundamental power to make a binding
    adjudication between the parties properly before it.” (Id. at p. 265.) But the
    court’s holding in that case turned on the nonparty’s willful obstruction of the
    defendant’s compliance with the court’s judgment. (Ibid. [distinguishing Alemite
    and Chase National Bank]; see also U.S. v. Paccione (2d Cir. 1992) 
    964 F.2d 1269
    , 1275 [similarly distinguishing Alemite because the case before it “dealt with
    a person who interfered with the res, the disposition of which the district court had
    specifically restricted, and who consciously impeded the rights, obligations and
    efforts of the parties bound by the court’s order from attempting to comply with
    valid court orders”]; see generally Rest.2d Judgments, § 63 [discussing duty not to
    obstruct compliance with court judgment].) In this case, there is no argument that
    Yelp is obstructing Bird’s compliance with the court’s order; Yelp represents (and
    we have no reason to doubt) that it will not stand in the way if Bird herself
    removes the reviews. 4 The concern is instead that Bird is withholding her own
    compliance, and the question is whether Yelp can be ordered to act independently,
    even though Yelp has not been served or its own rights adjudicated. Again,
    plaintiffs have cited no authority that permits that result.
    Plaintiffs also argue that the order is proper because Yelp has no
    independent interest in continuing to publish reviews that have been found by the
    trial court to be defamatory (albeit in a case to which Yelp was not a party). Yelp
    and its amici vigorously disagree, arguing that it has a protected First Amendment
    interest in the publication of the reviews, separate and apart from Bird’s own
    4      As a practical matter, that Bird can independently effectuate the judgment
    further distinguishes 
    Ross, supra
    , 
    19 Cal. 3d 899
    , where the defendant “could
    comply with the provisions of the . . . order requiring the payment of retroactive
    welfare benefits only through the actions of county welfare departments.” (Id. at
    p. 909, italics added.)
    10
    authorial interest, that has not yet been adjudicated. (Cf., e.g., New York Times
    Co. v. Sullivan (1964) 
    376 U.S. 254
    [discussing First Amendment rights of both
    the authors of a newspaper advertisement and the newspaper that published it];
    Taylor v. Sturgell (2008) 
    553 U.S. 880
    , 892–893 [“A person who was not a party
    to a suit generally has not had a ‘full and fair opportunity to litigate’ the claims
    and issues settled in that suit,” and therefore ordinarily is not bound by the
    judgment.].) We need not definitively resolve this controversy here, however,
    because it is incontestable that Yelp has an interest in avoiding a court order,
    backed by the threat of contempt sanctions, requiring it to do something it does not
    believe it is legally obligated to do. Whether Yelp is right or wrong about the
    nature of its obligations is beside the point. A person may be wrong and
    nevertheless entitled to his or her day in court.
    D.
    So far, I have described common ground with Justice Cuéllar’s dissenting
    opinion. Justice Cuéllar does not defend the trial court’s decision to issue an
    injunction against Yelp in a proceeding to which it was not a party, and he would
    vacate the Court of Appeal’s judgment upholding that order. (Dis. opn. of Cuéllar,
    J., post, at pp. 34–39.) Justice Cuéllar would, however, remand for consideration
    of whether the injunction against Bird can be enforced against Yelp because the
    company has aided and abetted, or otherwise acted in concert with, Bird in her
    violation of the court’s injunction. (Id. at p. 39.)
    I agree with Justice Cuéllar that this is the pertinent standard under Berger
    and related cases, but I do not believe a remand is warranted to consider whether
    Yelp has aided and abetted Bird’s noncompliance with the court’s order against
    her. The question before us concerns only the validity of the injunction entered
    against Yelp. To be sure, after that injunction issued, the trial court later
    concluded that Yelp had also aided and abetted the violation of the injunction
    against Bird and could be ordered to remove the reviews for that reason. But as
    noted, the Court of Appeal held that these aiding and abetting findings were both
    11
    “premature” and “also potentially improper” to the extent they were made in the
    context of Yelp’s legal challenge to the validity of the judgment, and without the
    procedural protections to which Yelp would have been entitled in a contempt
    proceeding. 
    (Hassell, supra
    , 247 Cal.App.4th at p. 1354; cf. 
    Gonzalez, supra
    , 12
    Cal.4th at p. 816 [contempt proceedings are “considered quasi-criminal, and the
    defendant possesses some of the rights of a criminal defendant”]; Blockowicz v.
    Williams (7th Cir. 2010) 
    630 F.3d 563
    , 568 (Blockowicz) [“Actions that aid and
    abet in violating the injunction must occur after the injunction is imposed[.]”];
    Paramount 
    Pictures, supra
    , 25 F.Supp.2d at p. 375 [“Nor does an injunction reach
    backwards in time to action taken prior to the time it was issued.”].) Plaintiffs
    have not challenged the Court of Appeal’s holding on this point. That holding
    does not preclude plaintiffs from instituting further proceedings if they believe
    Yelp has engaged in relevant post-order evasive conduct, or from seeking
    appropriate clarification of the scope of the injunction against Bird, but it does
    foreclose reliance on an aiding and abetting theory to validate the order enjoining
    Yelp in the first instance. And for present purposes, the conclusion that the
    injunction against Yelp is invalid is a complete answer to the issue presented to us.
    To the extent the question might arise in the future, however, I offer a
    cautionary note. The difficulties with the trial court’s aiding and abetting analysis
    extend beyond matters of timing and procedure. The trial court in this case
    reasoned, among other things, that Yelp is aiding and abetting Bird’s violation of
    the injunction simply by failing to remove Bird’s reviews from the website. But
    this establishes only that Yelp has not stepped forward to act despite Bird’s
    noncompliance. That is not aiding and abetting. (See 
    Blockowicz, supra
    , 630 F.3d
    at p. 568 [concluding that Internet service provider’s refusal to comply with an
    injunction was “mere inactivity” that was “simply inadequate to render them
    aiders and abettors in violating the injunction”]; see also 
    Conrad, supra
    , 55
    Cal.App.4th at p. 903 [before a nonparty can be punished for violating the terms of
    an injunction, it must be shown that the nonparty has acted “with or for those who
    12
    are restrained”; “some actual relationship with an enjoined party is required” and
    “[m]ere ‘mutuality of purpose’ is not enough”].) Put differently: The mere fact
    that Yelp has not removed Bird’s reviews from its website is not reason enough to
    avoid litigating the question whether Yelp does, in fact, have a legal obligation to
    remove the reviews from its website, in a forum in which Yelp has a meaningful
    opportunity to be heard.5
    II.
    In my view, these basic common law principles suffice to decide the case.
    The plurality opinion, however, decides the matter on a different ground. It holds
    that the trial court’s order directing Yelp to remove the reviews from the website is
    barred by Yelp’s statutory immunity under section 230. Although I believe it is
    unnecessary to reach the section 230 question, I agree with the plurality opinion’s
    conclusion given the particular circumstances of this case: Even if it were
    permissible to issue an injunction against Yelp solely because it once permitted
    Bird to post her reviews and has the ability to remove them, the proceedings
    would be barred by section 230.
    Two subsections of section 230 form the basis of the immunity Yelp claims
    in this case. First, section 230, subsection (c)(1) provides that “[n]o provider or
    user of an interactive computer service shall be treated as the publisher or speaker
    of any information provided by another information content provider.” Second,
    section 230, subsection (e)(3) provides that “[n]o cause of action may be brought
    and no liability may be imposed under any State or local law that is inconsistent
    with this section.” Together, “[t]hese provisions have been widely and
    5       In his dissent, Justice Cuéllar suggests other “evidence and interactions”
    that perhaps might support a finding that a website operator or other Internet
    platform acted as an aider and abettor. (Dis. opn. of Cuéllar, J., post, at pp. 35–
    36.) We have not received full briefing on this question, and I express no view on
    it. I do, however, caution that even when the common law permits the
    enforcement of an injunction against a third party aider and abettor, other sources
    of law, including section 230, may not. (Cf. plur. opn., ante, at p. 25.)
    13
    consistently interpreted to confer broad immunity against defamation liability for
    those who use the Internet to publish information that originated from another
    source.” (Barrett v. Rosenthal (2006) 
    40 Cal. 4th 33
    , 39 (Barrett).)
    In an early, influential discussion of section 230, the Fourth Circuit
    interpreted the provision to forbid any legal obligation that “would place a
    computer service provider in a publisher’s role.” (Zeran v. America Online, Inc.
    (4th Cir. 1997) 
    129 F.3d 327
    , 330.) The language of Zeran might be read to
    suggest that a court could never order a website to remove third party content,
    since any such order would necessarily interfere with the website’s choices about
    what content to publish. But section 230 immunity has not been thought to sweep
    quite so broadly. Barnes v. Yahoo!, Inc. (9th Cir. 2009) 
    570 F.3d 1096
    is
    illustrative. There, the Ninth Circuit concluded that section 230 immunity
    precluded a plaintiff’s claim of negligence against the website Yahoo for failure to
    take down fake profile accounts purporting to be the plaintiff, but did not preclude
    a claim of promissory estoppel based on Yahoo’s failure to fulfill a promise to
    remove the material. (Barnes, at pp. 1104–1109.) The Ninth Circuit reasoned that
    the plaintiff’s promissory estoppel claim “does not seek to hold Yahoo liable as a
    publisher or speaker of third party content, but rather as the counter-party to a
    contract, as a promisor who has breached.” (Id. at p. 1107.) Liability on the latter
    claim, the court explained, “would come not from Yahoo’s publishing conduct,
    but from Yahoo’s manifest intention to be legally obligated to do something,
    which happens to be removal of material from publication.” (Ibid.)
    Distilling the available authorities, section 230 immunity applies to an
    effort to bring a cause of action or impose civil liability on a computer service
    provider that derives from its status as a publisher or speaker of third party
    content. This reading of the statute is consistent with the policies articulated in
    influential cases interpreting section 230 immunity such as Zeran and reiterated in
    the plurality opinion: Section 230 forbids a cause of action or the imposition of
    liability when the effect is to impose liability for, or draw the provider into
    14
    litigation to defend, its past editorial judgments (or lack thereof) in permitting
    third party postings. But section 230 does not bar a cause of action solely because
    the result might be a court order requiring the provider, as the publisher of the
    posting in question, to take steps to remove it.
    In each of the cases cited in the plurality opinion, the court applied section
    230 to bar the filing of a lawsuit seeking to hold an interactive computer service
    responsible for offending posts written by a third party. This case concerns a
    different scenario. In this case, plaintiffs have filed no lawsuit against Yelp and
    have pursued no substantive claim against it. The injunction, as narrowed to
    Bird’s past reviews, on its face does not seek to draw Yelp into litigation to second
    guess or penalize Yelp for its initial decision to post Bird’s reviews, despite their
    defamatory content. As plaintiffs emphasize, the injunction instead requires only
    that, now that the reviews have been found by a court to be defamatory, Yelp
    remove the reviews. The injunction of course recognizes that Yelp is—as a matter
    of fact—the publisher of Bird’s reviews; the reviews cannot come down without
    Yelp’s cooperation. But that is not the pertinent question. The question is instead
    whether the injunction necessarily holds Yelp legally responsible for, or otherwise
    authorizes litigation against Yelp solely because of, its editorial choices.
    As the case comes to us, I agree with the plurality opinion that the answer
    to that question is yes. The justification plaintiffs offer for the issuance of the
    injunction is that Bird acted with Yelp’s permission in posting her reviews on its
    website, and Yelp has the ability to remove them even if Bird chooses not to. This
    means, as the plurality opinion says, that plaintiffs are proceeding against Yelp
    based on nothing more than its role as a publisher of third party content. (Plur.
    opn., ante, at pp. 22–25.) As such, the only distinction between this case and a
    lawsuit seeking to hold Yelp civilly liable for granting this permission to third
    party users—which, as all agree, would unquestionably be barred by section 230
    immunity—is plaintiffs’ decision not to name Yelp as a party (and thus, as
    plaintiffs would have it, to save Yelp the trouble of defending itself). But for
    15
    reasons I have already explained, plaintiffs’ decision cannot deprive Yelp of its
    opportunity to be heard on the propriety of the injunction against it. The
    distinction in procedure thus ultimately makes no difference. Either way,
    plaintiffs have drawn Yelp into litigation solely because of its past decision to
    allow Bird to post her reviews. Even if the trial court otherwise had the power to
    issue an injunction against Yelp solely on that basis, the proceedings would be
    barred by section 230.
    I would, however, stop there; I venture no opinion as to how section 230
    might apply to other take-down orders based on different justifications. I
    understand the plurality opinion’s application of section 230 to be similarly
    limited. The plurality opinion “recognize[s] that not all legal duties owed by
    Internet intermediaries necessarily treat them as the publishers of third party
    content, even when these obligations are in some way associated with their
    publication of this material”; it instead holds that, on the record before us, “Yelp is
    inherently being treated as the publisher of the challenged reviews, and it has not
    engaged in conduct that would take it outside section 230’s purview in connection
    with the removal order.” (Plur. opn., ante, at pp. 24–25.) This restraint is, I
    believe, appropriate here. Section 230 is often credited with giving rise to the
    modern Internet as we know it, but the broad sweep of section 230 immunity also
    has “troubling consequences.” (
    Barrett, supra
    , 40 Cal.4th at p. 40; see 
    id. at pp.
    62–63.) Section 230, as broadly construed, has brought an end to a number of
    lawsuits seeking remedies for a wide range of civil wrongs accomplished through
    Internet postings—including, but not limited to, defamation, housing
    discrimination, negligence, securities fraud, cyberstalking, and material support of
    terrorism. (See, e.g., Jane Doe No. 1 v. Backpage.com, LLC (1st Cir. 2016) 
    817 F.3d 12
    , 19 [citing cases]; Pennie v. Twitter, Inc. (N.D.Cal. 2017) 
    281 F. Supp. 3d 874
    , 888–889.) Whether to maintain the status quo is a question only Congress
    can decide. But at least when it comes to addressing new questions about the
    scope of section 230 immunity, we should proceed cautiously, lest we
    16
    inadvertently forbid an even broader swath of legal action than Congress could
    reasonably have intended.
    III.
    I, like my colleagues, am sympathetic to plaintiffs’ dilemma. Plaintiffs
    have proved to the satisfaction of the trial court that Bird’s critical Yelp reviews
    are false; Bird has yet to comply with the court’s order to remove the reviews; and
    section 230 forbids them from suing Yelp to require it to remove the reviews if
    Bird fails to do so. But as I see it, issuing an injunction directly against Yelp,
    without affording it a meaningful opportunity to be heard, is not an available
    alternative. Plaintiffs’ understandable desire to circumvent section 230 does not
    permit us to cast aside either the “ ‘ “deep-rooted historic tradition that everyone
    should have his own day in court,” ’ ” or the fundamental due process principles
    on which that tradition rests. (Richards v. Jefferson County (1996) 
    517 U.S. 793
    ,
    798.) I therefore join the plurality opinion in concluding that Yelp’s motion to
    vacate the injunction against it should have been granted.
    KRUGER, J.
    17
    DISSENTING OPINION BY LIU, J.
    The court expresses “sympathy” for those who have been defamed on the
    Internet, including plaintiffs Dawn Hassell and the Hassell Law Group, who won a
    lawful judgment against defendant Ava Bird for defamatory reviews that Bird
    posted on Yelp. (Plur. opn., ante, at p. 32; see conc. opn. of Kruger, J., ante, at
    p. 17.) But Hassell is not seeking sympathy. She is seeking a remedy for the
    damage done to her and her law firm. The trial court provided that remedy in the
    form of damages against Bird and an injunction ordering both Bird and Yelp to
    remove the defamatory reviews, and the Court of Appeal affirmed. However,
    more than four years after the trial court issued its order, Bird’s defamatory
    reviews remain posted on Yelp. Bird has refused to comply with the injunction,
    and Yelp claims it is under no legal obligation to comply. Today’s decision agrees
    with Yelp, thereby ensuring that Hassell will continue to suffer reputational harm
    from the unlawful postings unless Bird is somehow made to comply.
    This “dilemma” (conc. opn. of Kruger, J., ante, at p. 17) is one of the
    court’s own making. As Justice Cuéllar explains, today’s extension of the
    Communications Decency Act of 1996 (47 U.S.C. § 230) (section 230) to
    immunize Yelp is not supported by case law or by the statute’s text and purpose.
    (Dis. opn. of Cuéllar, J., post, at pp. 7–29.) Section 230 does not immunize Yelp
    from this removal order issued by a California court in a case where “[n]o claim
    was ever brought against Yelp seeking defamation or tort liability for its editorial
    1
    decisions.” (Dis. opn. of Cuéllar, J., post, at p. 18.) Decisions like Zeran v.
    America Online, Inc. (4th Cir. 1997) 
    129 F.3d 327
    are inapposite because they
    involved lawsuits filed directly against providers of interactive computer services
    for tort liability. In Barrett v. Rosenthal (2006) 
    40 Cal. 4th 33
    (Barrett), we relied
    on those decisions to conclude that “section 230 exempts Internet intermediaries
    from defamation liability for republication.” (Id. at p. 63.) We rested our holding
    on the understanding that “[s]ubjecting service providers to notice liability would
    defeat ‘the dual purposes’ of section 230, by encouraging providers to restrict
    speech and abstain from self-regulation. [Citation.] A provider would be at risk
    for liability each time it received notice of a potentially defamatory statement in
    any Internet message, requiring an investigation of the circumstances, a legal
    judgment about the defamatory character of the information, and an editorial
    decision on whether to continue the publication.” (Barrett at p. 45, italics added.)
    We emphasized that “[a]ny investigation of a potentially defamatory Internet
    posting is . . . a daunting and expensive challenge.” (Id. at p. 57, italics added.)
    Our opinion repeatedly explained that section 230 is intended to protect service
    providers from investigation and litigation burdens arising from notice of users’
    “potentially” defamatory statements. (Id. at pp. 44–46, 55, 57.)
    These concerns are not present in this case. No one has burdened Yelp
    with defending against liability for potentially defamatory posts. Here, the trial
    court ordered Yelp to remove postings that have been already adjudicated to be
    defamatory. Hassell sued Bird, not Yelp, and the litigation did not require Yelp to
    incur expenses to defend its editorial judgments or any of its business practices.
    The trial court ruled that Bird had defamed Hassell on Yelp, and it directed Yelp
    to help effectuate the remedy. Yelp’s conduct as a speaker or publisher was never
    at issue in Hassell’s lawsuit, and the trial court imposed no liability on Yelp for
    such conduct. Instead, the trial court enjoined Yelp as part of the remedy for
    2
    Bird’s tortious conduct toward Hassell. A company in Yelp’s position may face
    burdens associated with determining the “validity or scope” of a removal order or
    “the manner in which it is implemented.” (Plur. opn., ante, at p. 29.) But these
    are not the type of burdens contemplated by Barrett or the cases upon which
    Barrett relied in explaining the purpose of section 230 immunity.
    As for Yelp’s due process claim, the Court of Appeal properly clarified that
    the question here is “whether the trial court was without power to issue the
    removal order in the first instance.” (Hassell v. Bird (2016) 
    247 Cal. App. 4th 1336
    , 1357, italics added.) The matter before us is Yelp’s motion to vacate the
    trial court’s judgment; this is not a contempt proceeding or other action seeking to
    impose liability on Yelp for violating the injunction. (Ibid. [Yelp’s postjudgment
    conduct “has no bearing on the question” presented].) Justice Kruger argues that
    the removal order directed at Yelp violates due process because Yelp was never
    given its “own day in court” before the order was issued. (Conc. opn. of Kruger,
    J., ante, at p. 9.) She cites Judge Learned Hand’s opinion in Alemite
    Manufacturing Corp. v. Staff (2d Cir. 1930) 
    42 F.2d 832
    (Alemite) for the
    proposition that a court generally cannot “bind any one but a party” and “cannot
    lawfully enjoin the world at large.” (Id. at p. 832; see conc. opn. of Kruger, J.,
    ante, at p. 3.)
    But “[g]eneral propositions do not decide concrete cases” (Lochner v. New
    York (1905) 
    198 U.S. 45
    , 76 (dis. opn. of Holmes, J.)), and the facts of Alemite are
    instructive. The plaintiff there won a patent infringement suit against John Staff
    and obtained an injunction “against John, ‘his agents, employees, associates and
    confederates,’ enjoining them from infringing, or ‘aiding or abetting or in any way
    contributing to the infringement.’ ” 
    (Alemite, supra
    , 42 F.2d at p. 832.) “At the
    time of the suit [John’s brother] Joseph was a salesman for John, but later, having
    left his employ, he set up in business for himself, and was proved to have
    3
    infringed the patent. The plaintiff then began proceedings in the original suit to
    punish Joseph for contempt, asserting that he was bound by the decree, and that
    his new business was a violation of the writ.” (Ibid.) The Second Circuit held that
    the injunction in the action against John could not extend to Joseph’s new act of
    infringement. (Id. at p. 833.) Noting that “[t]he District Judge found that John
    ‘had no connection or part whatever in the acts of contempt hereby adjudged
    against Joseph Staff’ ” (id. at p. 832), Judge Hand explained that “[t]he District
    Court had no more power in the case at bar to punish [Joseph] than a third party
    who had never heard of the suit” (id. at p. 833).
    The injunction in Alemite could not reach Joseph, a nonparty, because his
    infringement of the same patent was entirely independent of John’s original act of
    infringement. It was in that sense that Judge Hand said Joseph was a stranger to
    the underlying suit. The same is not true here. The trial court did not enjoin Yelp
    “ ‘from engaging in independent conduct with respect to the subject matter of th[e]
    suit.’ ” (Conc. opn. of Kruger, J., ante, at p. 6.) Yelp was directed to remove
    Bird’s defamatory reviews of Hassell, the very subject matter of the underlying
    suit. The trial court did not enjoin Yelp from posting any other defamatory
    reviews of Hassell, even if such reviews were identical to Bird’s. This is fully
    consistent with Judge Hand’s admonition that “it is not the act described which the
    decree may forbid, but only that act when the defendant does it.” 
    (Alemite, supra
    ,
    42 F.2d at p. 833.) The defendant here is Bird; the unlawful acts are Bird’s
    defamatory reviews; and the injunction directs Yelp to remove only Bird’s
    defamatory reviews, not anyone else’s. The removal order illustrates the rule that
    an injunction may extend to a nonparty “when [the nonparty] has helped to bring
    about . . . what [the injunction] has power to forbid, an act of a party.” (Ibid.)
    In saying that the removal order enjoins Yelp from engaging in
    “independent conduct,” Justice Kruger strays from the meaning of that term as
    4
    used in the cases she cites. (See Additive Controls & Measurement Sys. v.
    Flowdata (Fed.Cir. 1996) 
    96 F.3d 1390
    , 1395 (Flowdata); Paramount Pictures
    Corp. v. Carol Pub. Group, Inc. (S.D.N.Y. 1998) 
    25 F. Supp. 2d 372
    , 375–376
    (Paramount Pictures).) In those cases, as in Alemite, a plaintiff obtained an
    injunction against one or more defendants for patent or copyright infringement and
    thereafter sought to bind nonparties to the injunction based on the nonparties’ acts
    of infringement. This was prohibited, the courts explained, because the nonparties
    had engaged in their own acts of infringement separate and apart from the
    defendants’ infringing acts that were the subject of the injunction. (See Flowdata,
    at pp. 1395–1397; Paramount Pictures, at pp. 375–376.) “Independent conduct”
    in this context means conduct by a nonparty that is allegedly unlawful independent
    of the defendant’s wrongdoing; it does not encompass conduct by a nonparty that
    facilitates the defendant’s wrongdoing. Indeed, Flowdata recognized — with no
    misgivings about due process — that courts have authority to issue a directive to a
    nonparty when “ ‘necessary or appropriate to effectuate and prevent the frustration
    of orders’ ” directed at a party. (Flowdata, at p. 1396, quoting U.S. v. New York
    Tel. Co. (1977) 
    434 U.S. 159
    , 172 [court may require telephone company to
    cooperate with installation of pen register device].) Alemite, Flowdata, and
    Paramount Pictures would be more on point if the trial court had ordered Yelp to
    remove identical reviews posted by people other than Bird. But the removal order
    targets only the reviews written by Bird, the defendant in the underlying suit.
    This court long ago observed that “it has been a common practice to make
    the injunction run also to classes of persons through whom the enjoined party may
    act, such as agents, servants, employees, aiders, abetters, etc., though not parties to
    the action, and this practice has always been upheld by the courts, and any of such
    parties violating its terms with notice thereof are held guilty of contempt for
    disobedience of the judgment.” (Berger v. Superior Court (1917) 
    175 Cal. 719
    ,
    5
    721 (Berger).) Justice Kruger doubts that “Bird acts, or has ever acted, ‘through’
    Yelp in the sense relevant under Berger” (conc. opn. of Kruger, J., ante, at p. 7)
    and suggests that Yelp’s conduct here is merely passive. But such a
    characterization of Yelp’s role blinks reality.
    If Bird had gone to the town square every day to shout defamatory
    comments about Hassell, or if Bird had made those comments to 50 friends, it is
    doubtful this case would be here today. Instead, Bird posted a review on Yelp, a
    website that attracts tens of millions of visitors every month. Yelp is an
    interactive service provider dedicated to inviting people like Bird to post reviews
    of local businesses and inviting users to search, sort, and read those reviews (all
    while exposing website visitors to advertisements). Yelp formats the reviews,
    makes the reviews searchable, and aggregates reviews of each business into a
    rating from one to five stars. Yelp’s Terms of Service make clear to reviewers that
    “[w]e may use Your Content in a number of different ways, including publicly
    displaying it, reformatting it, incorporating it into advertisements and other works,
    creating derivative works from it, promoting it, distributing it, and allowing others
    to do the same in connection with their own websites and media platforms.” The
    Terms of Service also state that Yelp owns “visual interfaces, interactive features,
    graphics, design, compilation, including, but not limited to, our compilation of
    User Content and other Site Content, computer code, products, software, aggregate
    user review ratings, and all other elements and components of the Site excluding
    Your Content, User Content and Third Party Content.”
    The treatment of user comments by other websites may be more passive,
    and I do not suggest that any website that posts user comments may be subject to a
    removal order like the one here. But Yelp’s relationship with reviewers like Bird
    is not passive. Even if Yelp was not Bird’s agent or servant (cf. Ross v. Superior
    Court (1977) 
    19 Cal. 3d 899
    , 905–909 (Ross); Ex parte Lennon (1897) 
    166 U.S. 6
    548, 555–556), it is evident that Bird acted through Yelp in the most relevant
    sense: It was Bird’s defamation of Hassell, facilitated by Yelp’s willing and active
    participation, that the trial court sought to enjoin. The removal order directed at
    Yelp is an example of the “common practice” of “mak[ing] the injunction
    effectual against all through whom the enjoined party may act, and to prevent the
    prohibited action” — here, the continued display of Bird’s defamatory reviews on
    Yelp — “by persons acting in concert with or in support of the claim of the
    enjoined party.” 
    (Berger, supra
    , 175 Cal. at p. 721, italics omitted.)
    Justice Kruger suggests that whether Bird acted through Yelp in a manner
    that made Yelp a proper subject of the injunction is an issue on which Yelp had a
    right to notice and an opportunity to be heard before the injunction issued. (Conc.
    opn. of Kruger, J., ante, at p. 7, fn. 3.) But I agree with the Court of Appeal that
    “a trial court does have the power to fashion an injunctive decree so that the
    enjoined party may not nullify it by carrying out the prohibited acts with or
    through a nonparty to the original proceeding.” (Hassell v. 
    Bird, supra
    , 247
    Cal.App.4th at p. 1357.)
    Again, Alemite is instructive. After obtaining an injunction “against John,
    ‘his agents, employees, associates and confederates,’ enjoining them from
    infringing, or ‘aiding or abetting or in any way contributing to the infringement,’ ”
    the aggrieved plaintiff initiated an action “to punish Joseph for contempt, asserting
    that he was bound by the decree” as a nonparty within the ambit of the
    injunction’s terms. 
    (Alemite, supra
    , 42 F.2d at p. 832.) It is true that Joseph had
    notice and an opportunity to be heard in the contempt proceeding, and he
    convinced the district court that his new act of infringement had no connection to
    John’s prior act of infringement that was the subject of the injunction. But
    suppose the district court had concluded otherwise and found Joseph in contempt.
    That determination would rest on the premise that the injunction validly applied to
    7
    Joseph when it was issued (provided he had notice of it, which he did). If Joseph
    could not have been bound by the injunction because he had no notice or
    opportunity to be heard before it was issued, then he could not have been punished
    for contempt under any scenario. Joseph could only have been bound by a new
    injunction after being heard on the nature of his conduct; he could not have been
    punished for violating the existing injunction. Yet Alemite provides no support for
    this view. Instead, Judge Hand recognized the validity of punishing a nonparty
    who “has helped to bring about” the prohibited act of a party as a narrow
    exception to the general rule that an injunction can apply only to persons who have
    had “their day in court.” (Id. at p. 833.)
    In 
    Ross, supra
    , 
    19 Cal. 3d 899
    , we rejected the local supervisors’ claim that
    they could not be held in contempt for violating an injunction directed at state
    officials and their “ ‘agents’ ” (id. at p. 906) because they were not parties to the
    suit in which the injunction was issued and “received no notice and were afforded
    no opportunity to defend that action” (id. at p. 905). We determined that the local
    supervisors were, by statute, “agents” of the state officials for purposes of
    administering welfare benefits, notwithstanding the supervisors’ arguments to the
    contrary. (Id. at pp. 906–909.) The supervisors had no opportunity to present
    their arguments that they were not “agents” of the state before the injunction
    issued — yet we upheld the finding of contempt because they “wilfully refused to
    comply with the judgment.” (Id. at p. 904.) In other words, the injunction was
    binding on the supervisors when issued, even though they had no notice or
    opportunity to be heard beforehand. Justice Kruger does not explain how, under
    her view, the supervisors in Ross could have been bound.
    The only difference here is that the injunction names Yelp instead of using
    a general phrase to refer to nonparties (e.g., “Bird’s agents, employees, associates,
    confederates, aiders and abettors”) as in Alemite and Ross. But that makes no
    8
    difference to the due process inquiry. Yelp may yet argue in a contempt
    proceeding that its relationship to Bird’s tortious conduct was not sufficient to
    justify the trial court’s removal order. But if that argument were to fail, the fact
    that Yelp — like the supervisors in Ross — had no notice or opportunity to be
    heard before the trial court issued the injunction would not preclude a finding of
    contempt. Such a finding would necessarily mean the injunction was valid when
    issued.
    Finally, the nature of Yelp’s relationship to Bird that makes Yelp a proper
    subject of the injunction is not that of a “publisher or speaker” for purposes of
    section 230 immunity. Yelp’s obligation to remove Bird’s defamatory reviews
    does not stem from any judgment as to the legality of any editorial decision by
    Yelp to publish Bird’s speech. As noted, the only issue in the underlying suit was
    whether Bird, not Yelp, had defamed Hassell and her firm; the suit did not impose
    on Yelp any burdens of defending itself against liability for “potentially
    defamatory” statements. (
    Barrett, supra
    , 40 Cal.4th at p. 45.) Whether Yelp
    could claim section 230 immunity in a contempt proceeding on the ground that its
    continued refusal to remove Bird’s reviews is a matter of editorial judgment,
    notwithstanding a state court judgment finding the reviews defamatory, is a matter
    not before us.
    The Court of Appeal got it right: Yelp has no statutory immunity from the
    removal order, and the removal order directed at Yelp does not violate due process
    of law. I would affirm the judgment of the Court of Appeal.
    LIU, J.
    9
    DISSENTING OPINION BY CUÉLLAR, J.
    Even — indeed, perhaps especially — in a society that values free
    expression, people expect courts and statutes to offer them minimal protections
    from disparaging misrepresentations or abject lies deliberately circulated to the
    public. Today’s plurality opinion does not. Despite clear evidence that the federal
    Communications Decency Act of 1996 (47 U.S.C. § 230 (hereafter section 230))1
    was no trump card letting providers of “interactive computer service” (§ 230(f)(2))
    such as Internet platforms evade responsibility for complying with any state court
    order involving defamation or libel, the plurality opinion posits that our state’s
    protections against the willful spread of false, damaging information are just not
    compatible with the Internet. In reaching this conclusion, the plurality opinion
    unfortunately misconstrues the Communications Decency Act and misapplies our
    precedent. It also runs the risk of misjudging the consequences of implying, in the
    early 21st century, that protections from libel, defamation, so-called “revenge
    porn,” and similar actions are plenty available except, of course, where they
    arguably matter most: on the digital network that gives a lone voice in the public
    square a megaphone loud enough to be heard in the most remote corners of the
    planet.
    In fact, the question this case presents is as novel as it is important –– one
    undecided by this court or any other. We must resolve whether section 230 grants
    an interactive computer service provider immunity from complying with a
    1         Undesignated references are to section 230.
    1
    properly issued state court order, and if not, under what circumstances a court may
    require such a service provider to remove posted information that a court has
    found defamatory. At core this case implicates a dispute not only about
    defamation on the Internet, but about whether a court can fashion an effective
    remedy that applies to Internet platforms. The plurality opinion is right to
    recognize that this question depends crucially on section 230 –– but it also
    implicates due process principles, as well as California law governing court issued
    injunctions.
    Yet the plurality opinion’s answer to this question follows almost entirely
    from its analysis of section 230. Remarkably, it asserts that section 230 alone
    prevents a California court from directing Yelp, Inc. (Yelp) to remove from its
    website statements that have been judicially adjudged defamatory. The plurality
    opinion expands this court’s precedent to reach its conclusion and authorizes
    interactive computer service providers to flout California court orders by asserting
    section 230 immunity. In doing so, the plurality opinion endangers victims of
    torts committed online, impermissibly limits the remedies available to Californians
    who rely on our state courts for protection, and sanctions a rule bereft of
    justification under California or federal law, with troubling implications for an
    Internet-dependent society.
    To the extent the plurality opinion maintains that section 230 acts as an
    absolute bar to this long-standing application of California law, we disagree ––
    and so does a majority of the court. The plurality opinion’s analysis of section 230
    is no more compelled by the statutory language of section 230, the legislative
    history of the statute, or any previous case law broadly interpreting section 230
    than it is by anything in California law. Although it explicitly addresses only
    section 230, the plurality opinion nonetheless concludes that there is no remedy
    for Dawn L. Hassell and her law firm, even through an injunction extended to
    Yelp. (Plur. opn., ante, at p. 32.) We disagree.
    2
    To provide the nuanced analysis necessary for resolution of the question
    before us, we identify the circumstances under which a California court may
    properly enjoin an interactive service provider. A California court has such power
    if it is wielded appropriately and in the right circumstances. Even in the context of
    this case, Justice Liu’s opinion posits an injunction might be properly enforced
    against an interactive service provider. (See dis. opn. of Liu, J., ante, at pp. 8-9.)
    And as Justice Kruger explains, section 230 does not necessarily foreclose a state
    court from specifically naming and enjoining an interactive service provider,
    provided courts observe proper procedural safeguards. (Conc. opn., ante, at pp.
    11-12, 14-16.)
    We also contemplate a different situation in our analysis –– one specifically
    raised by Yelp before the Court of Appeal and in its petition for review. Our
    analysis addresses whether the injunction, issued against Ava Bird and directing
    her to remove her defamatory posts from Yelp.com, may run to Yelp. We
    conclude that, under proper conditions, it may. Although the trial court in this
    case did not make sufficiently clear findings supporting the conclusion that Yelp
    acted as an agent of or conspirator with Bird, or aided and abetted her,
    circumstances may indeed arise where a nonparty interactive service provider is
    found to have developed such a close entanglement of interests –– based on the
    provider’s behavior before the injunction, and having received sufficient notice
    and opportunity to participate in the litigation.
    What this case does not implicate is the kind of situation where section 230
    does confer immunity –– against a cause of action filed directly against the
    platform, seeking to hold it liable for conduct as the publisher of third party
    content. (Plur. opn., ante, at p. 14, citing Barrett v. Rosenthal (2006) 
    40 Cal. 4th 33
    , 39 (Barrett).) Our view diverges from the plurality opinion’s conclusion that
    section 230 protects an Internet platform from complying with a state court order
    simply because the platform operates as the publisher of third party speech. We
    find no reason to read section 230 as categorically protecting an interactive service
    3
    provider from responsibility to comply with a properly issued injunction from a
    California court. Underlying our conclusion is what we take to be the most
    sensible reading of the relevant statutory terms and structure, precedent and
    persuasive case authority, and practical considerations grounded in the statutory
    purpose as well as California law.
    In pressing its argument to the contrary –– that courts effectively have no
    power to affect what information an Internet platform posts –– Yelp raises a
    variety of procedural and constitutional concerns. We take these concerns
    seriously, because fair adjudication and due process protections depend on an
    opportunity to be heard before a court for parties whose interests are at stake. But
    after careful review and reflection on applicable California and federal law, we do
    not believe Yelp offers a persuasive argument why the trial court is powerless to
    order removal of posted information by an interactive service provider that aids
    and abets the underlying violation. We also affirm a long-standing principle of
    California law that permits an injunction to run to a nonparty, where it has aided,
    abetted, or acted in concert with or support of the enjoined party to violate the
    terms of the injunction. We disagree with the plurality opinion’s apparent
    assertion that section 230 categorically preempts the power of California courts to
    enforce injunctive remedies on nonparties because of their status as publishers.
    (Plur. opn., ante, at p. 25.) What we conclude instead is that Yelp may not assert
    blanket immunity under section 230, where no cause of action has been filed
    against and no liability has been imposed upon it as the speaker or publisher of
    third party content.
    I.
    Dawn L. Hassell and the Hassell Law Group (collectively, Hassell) filed
    suit against their former client, Ava Bird, on April 10, 2013. They alleged that
    Bird posted “factually inaccurate and defamatory remarks” about Hassell on
    Yelp.com. Although Yelp was not named as a defendant in Hassell’s lawsuit,
    4
    Hassell sent copies of the complaint to Yelp via fax and e-mail on May 15, 2013.
    In their prayer for relief, Hassell sought damages and injunctive relief prohibiting
    Bird from continuing to defame Hassell as well as removal of every defamatory
    review Bird published about Hassell from Yelp’s website and anywhere else on
    the Internet.
    Bird never filed an answer to Hassell’s complaint. She did, however, file a
    request with the San Francisco Bar Association to mediate the lawsuit. Hassell
    attempted to engage in mediation with Bird, but Bird was nonresponsive to the
    assigned mediator’s scheduling requests. Hassell requested an entry for default
    judgment on July 11, 2013, which included a declaration regarding Hassell’s
    service on Bird. Hassell’s notice of hearing and application for default judgment
    was filed on November 1, 2013, and the hearing was scheduled for January 14,
    2014. Bird failed to appear at the hearing on Hassell’s application for default
    judgment, and the superior court swore-in, examined, and accepted evidence from
    Dawn Hassell.
    The superior court granted Hassell a default judgment against Bird,
    awarding over $550,000 in damages and an injunction requiring Bird to remove
    the defamatory reviews about Hassell from Yelp.com and anywhere else they
    appeared on the Internet. The default judgment entered in favor of Hassell on
    January 14, 2014, stated: “Plaintiffs’ Request for Injunctive Relief is Granted.
    Defendant AVA BIRD is ordered to remove each and every defamatory review
    published or caused to be published by her about plaintiffs HASSELL LAW
    GROUP and DAWN HASSELL from Yelp.com and from anywhere else they
    appear on the internet within 5 business days of the date of the court’s order. [¶]
    Defendant AVA BIRD, her agents, officers, employees, or representatives, or
    anyone acting on her behalf, are further enjoined from publishing or causing to be
    published any written reviews, commentary, or descriptions of DAWN HASSELL
    5
    or the HASSELL LAW GROUP on Yelp.com or any other internet location or
    website. [¶] Yelp.com is ordered to remove all reviews posted by AVA BIRD
    under user names ‘Birdzeye B.’ and ‘J.D.’ attached hereto as Exhibit A and any
    subsequent comments of these reviewers within 7 business days of the date of the
    court’s order.” Hassell served Yelp’s general counsel and its national registered
    agents with a copy of the judgment on January 15, 2014. Yelp’s director of
    litigation responded by letter, asserting that Yelp would not comply with the
    injunction. Yelp informed Hassell that it could not be bound by the injunction,
    was immune from compliance with the order under section 230, and that Hassell
    improperly served Bird and failed to sufficiently prove defamation.
    More than four months later, Yelp inserted itself into this case by filing a
    motion to vacate the superior court’s default judgment as to Bird. On August 27,
    2014, Yelp received a hearing on its motion to vacate the judgment against Bird.
    In its papers and at the hearing, Yelp argued that section 230 barred the injunction
    and that it could not be bound by the injunction as an agent or aider and abettor to
    Bird. The superior court found a factual basis to support Hassell’s contention that
    Yelp aided and abetted Bird’s violation of the injunction and included no
    discussion of section 230 in its order denying Yelp’s motion to vacate the
    judgment against Bird. Yelp appealed.
    The Court of Appeal held that the injunction could be enforced against
    Yelp, and rejected Yelp’s argument that section 230 granted it immunity from any
    responsibility to comply with the injunction. (Hassell v. Bird (2016) 
    247 Cal. App. 4th 1336
    , 1356-1357, 1365 (Hassell).) Addressing Yelp’s challenge to
    the injunction directing it to remove posts from its website, the Court of Appeal
    held that under California law, an injunction can be applied to nonparties in
    appropriate circumstances. (Id. at p. 1355, citing Ross v. Superior Court (1977) 
    19 Cal. 3d 899
    (Ross).) The court reasoned that these principles of California law
    6
    undermined Yelp’s theory that the trial court lacked authority to include in the
    judgment against Bird a provision ordering Yelp to effectuate the injunction
    against Bird by deleting her defamatory reviews. (Id. at p. 1356.) Yelp argued it
    was insulated from any responsibility to comply with an injunction issued against
    Bird, because the evidence did not establish that Yelp aided and abetted Bird’s
    violation of the injunction. The court concluded that the specific aiding and
    abetting issue taken up by the trial court in this case had no bearing on whether the
    trial court, in principle, had authority to issue the injunction in the first place. (Id.
    at p. 1357.) The court held that California law “establishes that a trial court has
    the power to fashion an injunctive decree so that the enjoined party may not
    nullify it by carrying out the prohibited acts with or through a nonparty to the
    original proceeding.” (Ibid.)
    Yelp petitioned this court for review. It asked us to resolve two related
    issues: whether California law authorizes an injunction to extend to a nonparty
    online publisher, and whether section 230 prevents a court from enjoining and
    directing a website publisher to remove third party content from its website. We
    granted Yelp’s petition for review.
    II.
    Time and again in the course of its extensive participation in this litigation,
    Yelp urged the court to embrace a specific reading of section 230. That reading
    would categorically shield Yelp from responsibility to comply with any
    conceivable injunction issued by the superior court. Only by conjuring immunity
    from a statute that does not provide it to advance a purpose putatively derived
    from a statute that does not embrace it can Yelp expect its argument on this score
    to persuade. We address Yelp’s contention that section 230 prohibits a California
    court from crafting and effectuating an injunction that directs a website publisher
    7
    to take specific action, including a directive to remove from its website content
    judicially deemed defamatory.
    Yelp’s own interpretation of section 230 is essentially the one embraced by
    the plurality opinion: that this provision works to immunize interactive service
    providers that post third party information or derivative content from compliance
    with state court orders that implicate their status as the publisher of third party
    content. The terms of section 230 lend no support to this interpretation. Enacted
    in 1996 as part of the Communications Decency Act, section 230 is entitled
    “Protection for private blocking and screening of offensive material.” None of the
    terms included in section 230 suggest an immunity trump card from state court
    orders lurking in the statute’s midst. Section 230 describes certain protections and
    obligations of interactive computer services, like Yelp. Section 230(a),
    “Findings,” reflects that section 230 was adopted at a time of rapid development of
    the Internet, and with Congress’s express recognition that Americans increasingly
    rely on the Internet for political, educational, cultural, and entertainment purposes.
    (§ 230(a).) The policy priorities described in section 230(b) demonstrate a
    concern with addressing objectionable and offensive material available online. In
    addition to policies encouraging the promotion, continued development, and
    preservation of the competitive free market for the Internet, the statute specifically
    enunciates policies to encourage the development of technologies that maximize
    user control over information received through the Internet and to remove
    disincentives for developing and utilizing blocking and filtering technologies to
    limit children’s access to objectionable or inappropriate online content. (§
    230(b).) None of the policies within section 230(b) state or suggest an express
    immunity from compliance with state court orders.
    The title of section 230(c) is “Protection for ‘Good Samaritan’ blocking and
    screening of offensive material.” What section 230(c)(1) provides is this: “No
    8
    provider or user of an interactive computer service shall be treated as the publisher
    or speaker of any information provided by another information content provider.”
    Section 230(c)(2) explains that providers or users of interactive computer services
    shall not be liable for actions taken in good faith to restrict access to obscene,
    harassing, or objectionable material, regardless of whether such material is
    constitutionally protected, or for efforts to make available technology that restricts
    such material. (§ 230(c)(2)(A)-(B).) Section 230(c) does not endow Internet
    platforms with a complete immunity from compliance with state court orders.
    Rather, it enunciates protections where offensive material is voluntarily restricted,
    blocked, or screened. Section 230(d) outlines the obligations of interactive service
    providers to provide notification regarding parental control protections that assist a
    customer in limiting minors’ access to harmful online material. (§ 230(d).) And
    section 230(e) explains that section 230 has no effect on certain federal and state
    laws. (§ 230(e).) Section 230(e)(3), which pertains to state and local laws, is
    particularly relevant here. It states only: “Nothing in this section shall be
    construed to prevent any State from enforcing any State law that is consistent with
    this section. No cause of action may be brought and no liability may be imposed
    under any State or local law that is inconsistent with this section.” (§ 230(e)(3).)
    Because of the website it runs, Yelp is one of the entities functioning as a
    provider of interactive computer service. Such entities have both certain
    protections and responsibilities under the statute. (§ 230(d), (f)(2); see also Fair
    Housing Council of San Fernando Valley v. Roommates.com, LLC (9th Cir. 2008)
    
    521 F.3d 1157
    , 1162, fn. 6 (Roommates.com) [“Today, the most common
    interactive services are websites”].) And Bird, the creator of information posted
    on Yelp.com, is an “information content provider” as a person “responsible, in
    whole or in part, for the creation or development of information” provided through
    the Internet or a website like Yelp. (§ 230(f)(3).) Hassell, the victims of
    9
    defamation, filed their claim only against Bird — the originator of the defamatory
    speech — and not against Yelp, an interactive service provider. No cause of
    action or claim was ever filed against Yelp as an interactive service provider. (See
    § 230(e)(3).) Rather, Yelp’s participation in this case was at its own demand,
    through a motion to invalidate Hassell’s default judgment against Bird. The
    question is whether Yelp may assert section 230 immunity where the only cause of
    action relevant to this case was brought against Bird directly and no legal claim or
    liability is levied against Yelp.
    By its terms, section 230 conspicuously avoids conferring complete
    immunity from all legal proceedings. Its language expressly permits the
    enforcement of certain federal criminal laws as well as state laws consistent with
    the section. (§ 230(e).) In the context of state law, the section 230 only prohibits
    causes of action from being brought and liability from being imposed under state
    laws that are inconsistent with the section. (§ 230(e)(3).) From the statute’s
    terms, an inconsistent state law is one in conflict with the terms in section 230(c).
    An inconsistent state law under section 230(c)(1) is a state law cause of action or
    liability that treats an interactive computer service as the publisher or speaker of
    information provided by another information content provider. And an
    inconsistent state law under section 230(c)(2) is a state law cause of action that
    seeks to hold an interactive service provider liable for voluntary actions taken in
    good faith to restrict access to obscene, lewd, harassing, or otherwise
    objectionable material. If section 230 conferred complete immunity on an
    interactive service provider, as the plurality opinion implies, then lurking
    somewhere in the statute one would need to find an enormously consequential
    codicil of categorical absolution written in invisible ink to preempt the statute’s
    more nuanced scheme.
    10
    There’s no such codicil. Nor does Yelp even face “liability” here at all.
    (See § 230(e)(3).) The plurality opinion treats compliance with the court order
    pertaining to Bird’s defamatory speech as a kind of liability against Yelp, arguing
    that liability is a broad legal term. (Plur. opn., ante, at pp. 26-27, citing Black’s
    Law Dict. (6th ed. 1990) p. 914 (Black’s 6th ed.).) But we define liability under
    section 230 as the term of art that it is in our legal system –– meaning a financial
    or legal obligation, such as a duty of care under tort law, the breach of which gives
    rise to a tort lawsuit –– that treats a service provider or user as the publisher or
    speaker of third party content. We find support for this interpretation in the
    commonly understood definition of “liability.” (See Webster’s 9th New
    Collegiate Dict. (1989) p. 687 [defining liability as “something for which one is
    liable; esp, pl : pecuniary obligations : DEBTS”]; see also Black’s Law Dict. (10th
    ed. 2014) p. 1053 [defining “liability” as “being legally obligated or accountable”
    or a “financial or pecuniary obligation in a specified amount.”].) As the plurality
    opinion readily acknowledges, “liability” was understood at the time the statute
    was enacted to include the imposition of damages. Indeed, it was defined at the
    time “to mean: all character of debts and obligations.” (Black’s 6th 
    ed., supra
    , at
    p. 914.)
    So liability in this context is best understood as a type of financial
    obligation, such as the responsibility to pay damages arising from a successfully-
    litigated tort suit. This conclusion is bolstered by our own decisions, together with
    cases from other jurisdictions and the history of the statute at issue that liability in
    this context is essentially a type of financial obligation. (Id. at p. 1055 [defining
    “tortious liability” as “redressable by an action for compensatory, unliquidated
    damages” and in some cases “by extracompensatory or punitive damages”].) As
    the plurality opinion acknowledges, in Barrett, this court explained that “Congress
    intended to create a blanket immunity from tort liability for online republication of
    11
    third party content” (
    Barrett, supra
    , 40 Cal.4th at p. 57) and was specifically
    concerned with compelling regulation of service providers “at the sword point of
    tort liability” (id. at p. 53). We specifically cited subsequent legislative history
    affirming that Congress’s purpose was to protect providers from liability for tort
    claims. (Id. at p. 54, citing H.R.Rep. 107-449, 2d Sess., p. 5 (2002) [“The courts
    have correctly interpreted section 230(c), which was aimed at protecting against
    liability for such claims as negligence”].) One of the first cases to interpret section
    230, Zeran v. America Online, Inc. (4th Cir. 1997) 
    129 F.3d 327
    , 330 (Zeran),
    explained that “Congress recognized the threat that tort-based lawsuits pose” and
    the purpose of the statutory immunity was to prohibit the “imposition of tort
    liability on service providers” in a burgeoning Internet. Zeran, on which the
    plurality opinion relies, expressed that section 230 was enacted to prevent the
    imposition of “tort liability on service providers for the communication of others.”
    (Zeran, at p. 330.) This focus on tort liability suggests that Congress understood
    “liability” to mean tort liability, and supports our definition of liability as a
    financial obligation, like damages.
    The federal courts of appeals have also readily acknowledged Congress’s
    concern with preventing tort liability against Internet platforms for third party
    speech. (See Jane Doe No. 1 v. Backpage.com, LLC (1st Cir. 2016) 
    817 F.3d 12
    ,
    23 [explaining that in enacting section 230, Congress chose to prohibit “ ‘tort
    liability on companies that serve as intermediaries for other parties’ potentially
    injurious messages’ ”]; see also Doe v. Internet Brands (9th Cir. 2016) 
    824 F.3d 846
    , 852 [reasoning that section 230 is concerned with “ ‘the imposition of tort
    liability on companies that do not create potentially harmful messages’ ” but are
    merely intermediaries].) The injunction issued by the superior court does not
    demand any financial obligation of Yelp. The underlying judgment and award of
    damages pertains only to Bird and no damages or financial obligation are sought
    12
    from Yelp. The only possible financial obligation Yelp might face would result
    from contempt proceedings and no such proceedings have occurred here.
    All of which underscores why it is a contrast between apples and oranges
    — or apples and Oreos, for that matter –– to compare a defendant’s explicit
    targeting by a civil lawsuit with a person or entity’s remedial responsibility to
    avoid helping others engage in prohibited conduct. A defendant to a state law
    cause of action may be subject to an adverse judgment triggering a responsibility
    to provide monetary or equitable relief to the plaintiff, and may incur litigation
    expenses to defend itself. In contrast, an entity that has not been sued is required
    only to refrain from engaging in prohibited actions. Yelp has not been sued, and
    its only responsibility in light of the judgment and injunction against Bird is to
    avoid violating that court order. Section 230 does not extend protection to a
    provider or user who violates an injunction by instead promoting third party
    speech that has been deemed unlawful by a California court. Yelp has an
    obligation not to violate or assist in circumventing the injunction against Bird, but
    that does not impose a legal obligation upon Yelp that treats it as a publisher or
    speaker of third party content. As we explained in Barrett, interactive service
    providers and users are exempt under section 230 “from defamation liability for
    republication.” (
    Barrett, supra
    , 40 Cal.4th at p. 63.) We enunciated our concern
    that “subjecting Internet service providers and users to defamation liability would
    tend to chill online speech” as central to our holding that users and providers may
    not be sued directly and held liable for distributing defamatory speech. (Id. at p.
    56.) But we did not interpret section 230 to expand its protections to a provider
    that acts in concert with another party to violate a court order or engage in
    prohibited acts. That sort of interaction would eliminate the “publisher” immunity
    contemplated in section 230(c)(1) and (e)(3). (See Barrett, at p. 63 (conc. opn. of
    Moreno, J.) [reasoning that publishers who conspire with original content
    13
    providers “would not be covered by the immunity provided by. . . section
    230(c)(1) and (e)(3)”].)
    The plurality opinion belittles the state court injunction here as the result of
    a “tactical decision.” The plurality implies the injunction is part and parcel of a
    nefarious “litigation strategy” advanced by Hassell solely to circumvent section
    230. (Plur. opn., ante, at p. 22.) Using this lens, the plurality elides the distinction
    between causes of action filed directly against interactive service providers that
    seek injunctive relief and state court orders that contain injunctions. The few
    cases addressing injunctive relief did not extend section 230 immunity to a
    provider or user seeking to evade compliance with an injunction. Rather, those
    cases barred causes of action filed directly against the provider or user where the
    claims sought injunctive relief as a remedy. (See Kathleen R. v. City of Livermore
    (2001) 
    87 Cal. App. 4th 684
    , 698 (Kathleen R.) [reasoning that “even if for
    purposes of section 230 ‘liability’ means only an award of damages [citation], the
    statute by its terms also precludes other causes of action for other forms of relief”
    such as taxpayer actions and claims for declaratory and injunctive relief filed
    directly against a provider or user]; see also Medytox Solutions, Inc. v.
    Investorshub.com, Inc. (Fla.Dist.Ct.App. 2014) 
    152 So. 3d 727
    , 731 (Medytox)
    [concluding that section 230 “encompasses the claims for declaratory relief and
    injunctive relief” filed directly against the interactive service provider].) These
    cases lend no support to the plurality opinion’s assertion that a provider or user
    may invoke section 230 immunity to avoid compliance with an injunction, where
    no cause of action or claim has been filed. All of this makes it difficult at best to
    conclude that section 230’s statutory terms somehow imply an unbounded
    immunity to a service provider, where no cause of action is lodged against it and
    no liability, meaning a financial or legal obligation that treats Yelp as the publisher
    of third party content, is sought.
    14
    Given the plurality opinion’s embrace of an approach to section 230 that is
    not compelled or even much supported by the statutory terms, it is unsurprising
    that it is also an interpretation that does not follow from our precedent. And to the
    extent the plurality opinion concludes that section 230 operates as a blanket
    immunity for interactive service providers to disregard California court orders, it
    fails to garner support from a majority of the court. Just once before did this court
    consider section 230, in Barrett. What our opinion in that case addressed is only
    whether the federal statute grants the distributor of allegedly defamatory material
    immunity from a defamation lawsuit. (
    Barrett, supra
    , 40 Cal.4th at p. 39 [“We
    granted review to decide whether section 230 confers immunity on ‘distributors’
    ”].) Our holding was limited to an interpretation of section 230 that “does not
    permit Internet service providers or users to be sued as ‘distributors,’ nor does it
    expose ‘active users’ to liability.” (Barrett, at p. 63.) Barrett did not squarely
    consider whether an interactive service provider may avoid compliance with a
    properly issued state court order. We cannot rely solely upon it or any other
    precedent to resolve this case, but it remains instructive as we analyze, more
    broadly, the statute’s breadth and limitations.
    To reach our limited holding in Barrett, we weighed the meaning of section
    230(c)(1) and (e)(3) together. We explained that “[t]hese provisions have been
    widely and consistently interpreted to confer broad immunity against defamation
    liability for those who use the Internet to publish information that originated from
    another source.” (
    Barrett, supra
    , 40 Cal.4th at p. 39.) Our reasoning in Barrett is
    consistent with the view that interactive service providers may invoke section 230
    immunity to protect themselves from certain causes of action or liabilities, such as
    those seeking defamation liability based on the provider’s publication or
    distribution of defamatory speech. (Barrett, at p. 63 [“section 230 exempts
    Internet intermediaries from defamation liability for republication”].) A plaintiff
    15
    might file a state law defamation cause of action against an interactive service
    provider –– one treating the provider “as the publisher or speaker” of “information
    provided by another information content provider,” as described in section
    230(c)(1). Under section 230(e)(3), a provider may escape that cause of action or
    avoid the liability sought in the plaintiff’s claim. Barrett instructs that a
    defamation claim filed against Yelp for acting as the “distributor” of Bird’s speech
    would be barred by section 230. But no such claim was filed against Yelp in this
    case.
    Barrett clarified that a plaintiff aggrieved by defamatory speech must file
    its cause of action against the original speaker. We instructed that the proper
    procedure to address defamation in Internet publications is for plaintiffs “to pursue
    the originator of a defamatory Internet publication” and observed that “further
    expansion of liability must await congressional action.” (
    Barrett, supra
    , 
    40 Cal. 4th
    at p. 63.) Hassell followed the procedure described in our prior opinion by
    filing their claims against Bird, the originator of the defamatory statements. In
    line with our directive, Hassell did not bring a cause of action for liability against
    Yelp. Hassell’s lawsuit against Bird, the information content provider, fits with
    section 230’s terms and our prior opinion.
    In Barrett we found section 230 immunity protected an interactive
    computer service user sued directly for defamation liability. We held only that
    “by its terms section 230 exempts Internet intermediaries from defamation liability
    for republication.” (
    Barrett, supra
    , 40 Cal.4th at p. 63.) Barrett specifically
    contemplated a state law tort claim filed against an interactive computer service
    user, which we deemed was inconsistent with section 230 because the defamation
    claim against the user sought to hold the user liable for defamatory speech
    authored by a third party. Whatever else is true of Barrett, it does not compel a
    finding that Yelp may invoke section 230 immunity where it is not the subject of a
    16
    state law tort claim and where no liability is sought from Yelp for third party
    speech. The immunity that Yelp desires is conferred only when a state law claim
    is brought or a liability imposed that is inconsistent with section 230 because it
    regards the provider or user as the speaker of third party speech. (§ 230(c)(1),
    (e)(3).) Because these necessary conditions are not present in this case, we
    conclude that Yelp may not assert unlimited immunity where no cause of action or
    liability is imposed against it as the speaker or publisher of third party information.
    This conclusion fits with what we held in Barrett. Congress’s purpose was
    “to create a blanket immunity from tort liability for online republication of third
    party content.” (
    Barrett, supra
    , 40 Cal.4th at p. 57.) Here, Hassell do not seek
    tort liability from Yelp for republishing Bird’s content. Rather, Hassell filed suit
    directly against Bird, seeking liability in money damages and injunctive relief
    against Bird as the speaker and originator of the defamatory speech. As Yelp
    quotes in its opening brief, “ ‘Plaintiffs who contend they were defamed in an
    Internet posting may only seek recovery from the original source of the statement.’
    ” (Quoting Barrett, at p. 58.) Hassell did exactly that.
    Yelp and the plurality opinion are left to rely on nonbinding case law from
    other jurisdictions — addressing markedly distinct circumstances — to support
    their strained interpretation of section 230. Yelp relies on the Fourth Circuit
    decision in Zeran, which held that lawsuits against interactive service providers
    seeking to hold the provider liable for decisions to publish, withdraw, postpone, or
    alter content are barred under section 230. (Zeran, 129 F.3d at p. 330). Zeran
    assessed a provider’s immunity from a state tort claim and the Fourth Circuit’s
    holding does not conflict with our reading of section 230. There, the victim of
    defamatory posts on an America Online (AOL) message board filed claims against
    AOL, an interactive service provider. (Zeran, at pp. 329, 332.) The plaintiff did
    not bring a cause of action against the poster of the offensive messages, but
    17
    instead sought to hold AOL liable for the third party’s defamatory speech. (Id. at
    pp. 329-330.) Addressing whether AOL could assert section 230 as an affirmative
    defense to the claims against it, the court reasoned that “[section] 230 creates a
    federal immunity to any cause of action that would make service providers liable
    for information originating with a third party user of the service.” (Zeran, at p.
    330, italics added.) What the court addressed is section 230 immunity for tort
    claims filed against an interactive service provider, not immunity for a claim
    against the originator of the defamatory speech. Under these facts, the court
    reasoned that websites faced with “lawsuits seeking to hold a service provider
    liable” for the decision to publish, withdraw, or alter content, may enjoy section
    230 immunity. (Zeran, at p. 330.) Zeran’s holding is inapposite here, where
    Hassell filed their claim against the speaker of the defamatory speech, and not
    Yelp, as the interactive service provider. No claim was ever brought against Yelp
    seeking defamation or tort liability for its editorial decisions. Yelp and the
    plurality opinion’s extension of section 230 immunity to any circumstance in
    which a service provider exercises a publisher’s traditional editorial functions goes
    beyond the federal court’s holding in Zeran.
    Yelp and the plurality opinion also cite Barnes v. Yahoo!, Inc. (9th Cir.
    2009) 
    570 F.3d 1096
    (Barnes), a Ninth Circuit case that considered state law
    claims brought against an interactive service provider. (Id. at p. 1099.) This Ninth
    Circuit opinion provides a framework to assess whether a cause of action filed
    against a provider seeks to treat the provider as a publisher or speaker of third
    party information. But applying the framework offered in Barnes to the instant
    case does not compel the conclusion that section 230 grants complete immunity to
    a provider seeking to evade compliance with a state court order.
    Plaintiff Barnes’s ex-boyfriend created and posted fake online profiles of
    Barnes on a website run by Yahoo. The profiles featured naked photographs and
    18
    solicitations to engage in sexual intercourse. 
    (Barnes, supra
    , 570 F.3d at p. 1098.)
    In accordance with Yahoo’s policy, Barnes submitted a signed statement that she
    did not create the profiles, requested their removal, and included the required
    supporting documentation. She was eventually contacted by Yahoo’s director of
    communications who assured her Yahoo would “take care of” her removal
    request. (See 
    id. at pp.
    1098-1099.) Barnes claimed she relied on that statement
    and took no further action. Two months later, still with no word from Yahoo,
    Barnes filed a lawsuit against Yahoo alleging a state law tort claim for negligent
    undertaking and a state law contract claim for promissory estoppel. Yahoo argued
    it was immune from liability under section 230.
    The Ninth Circuit first explained that no provision of section 230 “declares
    a general immunity from liability deriving from third party content.” 
    (Barnes, supra
    , 570 F.3d at p. 1100.) The court rejected Yahoo’s assertion that section
    230(c)(1) granted blanket immunity from any liability arising from third party
    information and read section 230(c)(1) and (e)(3) together, explaining that (e)(3)
    makes the terms of (c)(1) explicitly relevant, as “(c)(1) only protects from liability
    (1) a provider or user of an interactive computer service (2) whom a plaintiff seeks
    to treat, under a state law cause of action, as a publisher or speaker (3) of
    information provided by another information content provider.” (Barnes, at pp.
    1100-1101.) The Ninth Circuit defined the inquiry for section 230 immunity as
    “whether the cause of action inherently requires the court to treat the defendant as
    the ‘publisher or speaker’ of content provided by another.” (Barnes, at p. 1102.)
    The court “must ask whether the duty that the plaintiff alleges the defendant
    violated derives from the defendant’s status or conduct as a ‘publisher or speaker,’
    ” and if so, section 230 precludes liability. (Barnes, at p. 1102.)
    Neither description of this test from Barnes carries the day for Yelp.
    Barnes’s assessment was limited to a claim filed against a provider and conceived
    19
    of section 230 immunity only where that defendant provider was sued as liable for
    third party speech. This analysis addresses a claim or theory of recovery filed
    against the defendant –– not a third party, as in the instant case. The causes of
    action here are Hassell’s defamation claims against Bird. The court must assess
    whether those causes of action “treat the defendant as the ‘publisher or speaker’ of
    content provided by another.” 
    (Barnes, supra
    , 570 F.3d at p. 1102.) The answer
    is no. Bird, as the defendant, is treated as the speaker of her own speech.
    Hassell’s claims were filed against the party they seek to hold liable: Bird.
    Hassell does not seek to hold Yelp liable as the publisher of Bird’s content. That
    Yelp functions as a publisher of Bird’s speech does not in itself grant Yelp
    complete immunity under section 230. The liable party, who is subject to the
    defamation liability judgment, is Bird –– not Yelp. Hassell’s claim against Bird
    for defamation does not treat Yelp as a publisher or speaker of Bird’s speech. No
    immunity exists under section 230 under these circumstances.
    What the test in Barnes treats as critical is whether the defendant’s acts
    relate to the defendant’s status or conduct as a publisher or speaker. Yelp suggests
    this test should be manipulated to ask whether the duty Yelp (a nonparty, and not
    a defendant) violated derives from Yelp’s status or conduct as a publisher or
    speaker. This reformulation of the Barnes test does nothing to advance Yelp’s
    position. Yelp’s duty is not the result of its status or acts as a publisher. Yelp's
    duty is to refrain from violating the injunction or assisting Bird in evading the
    injunction. (See 
    Barnes, supra
    , 570 F.3d at p. 1107 [reasoning that liability
    “would come not from Yahoo’s publishing conduct, but from Yahoo’s manifest
    intention to be legally obligated to do something, which happens to be removal of
    material from publication”].) Yelp’s obligation could arise from a valid
    conclusion that it aided and abetted unlawful conduct or a subsequent contempt
    proceeding. Neither of these amounts to a direct claim alleging Yelp engaged in
    20
    defamation or the publication or distribution of defamatory speech. Again we find
    no support for far-reaching conclusions about section 230 immunity.
    Yelp also claims the Court of Appeal misread section 230(e)(3) by
    construing it to limit the broad immunity allegedly established by 230(c)(1). Yelp
    argues that Barnes concluded that section 230(c)(1), by itself, shields from
    liability all publication decisions, including whether to post or remove content
    generated by third parties. We are not persuaded by Yelp’s argument, and a
    careful reading of the discussion in Barnes shows why. The Ninth Circuit’s
    statement was not an assertion that state law claims may be barred solely on
    authority conferred by section 230(c)(1). As previously discussed, the Ninth
    Circuit framed its assessment under section 230 as an interplay between section
    230(c)(1) and (e)(3). And this sentence cited by Yelp was just one statement
    within a longer discussion about the separate roles of section 230(c)(1) and (2).
    (See 
    Barnes, supra
    , 570 F.3d at p. 1105 [“A closer look at the whole of section
    230(c), we believe, makes sense of this apparent contradiction. Subsection (c)(1),
    by itself, shields from liability all publication decisions, whether to edit, to
    remove, or to post, with respect to content generated entirely by third parties.
    Subsection (c)(2), for its part, provides an additional shield from liability. . . .”].)
    The plurality opinion posits that the trial court’s order overrules Yelp’s
    decision to post the defamatory review and is therefore barred by section 230.
    (Plur. opn., ante, at pp. 22-24.) But the plurality’s conclusion doesn’t follow from
    its premise, because section 230 no more preempted all state law governing
    injunctions than it preempted all state law governing defamation. Yelp’s
    obligation here is to refrain from violating the injunction issued against Bird. An
    obligation not to act in concert or with an enjoined party to violate the terms of an
    injunction is not a cause of action or a financial or legal obligation treating Yelp as
    the publisher or speaker of Bird’s speech. This obligation does not hold Yelp to
    21
    account for its publication decisions such that it is treated as the publisher of
    Bird’s speech. It holds Yelp accountable for aiding, abetting, or acting in concert
    with or support of Bird as the enjoined party. The plurality opinion purportedly
    recognizes Hassell obtained a default judgment and injunction against Bird, and
    acknowledges that California law requires nonparties to comply with injunctions
    in appropriate circumstances. What it seems to overlook are the implications of
    these observations when section 230 is read correctly and no due process problems
    exist: that the provision of the injunction directing Bird to remove her defamatory
    posts could run to Yelp and similarly situated entities. (Id. at p. 23.)
    The plurality opinion acknowledges that even under its reading of section
    230, Yelp could conceivably be forced to comply with an injunction. (Plur. opn.,
    ante, at pp. 23-24.) Of course it can, but our focus is on the issue most directly
    raised by this case –– the injunction provision directing Bird to remove her
    defamatory posts, and whether that injunctive duty may be enforced against Yelp.
    Our conclusion is that section 230 does not categorically ban enforcement of the
    injunction against Bird, Yelp, or similarly situated entities.
    Yelp and its supportive amici curiae cite other nonbinding cases to press the
    case for Yelp’s complete immunity under section 230. These cases are
    distinguishable from the issue at hand because they addressed defamation liability
    claims or causes of action filed directly against an Internet service provider or
    user. As we have explained, no cause of action was filed against Yelp as an
    interactive service provider. Relying on these cases, Yelp petitions for an
    expansion of section 230 immunity beyond what this court or any other has
    previously held. That a certain kind of injunction may be barred by section 230
    does not compel a conclusion or even strongly imply that service providers are
    immune from compliance with any properly issued injunction simply because they
    are service providers as defined in the statute.
    22
    Nowhere in section 230 or anywhere else in the Communications Decency
    Act is there support for the conclusion that injunctions issued by state courts are
    categorically barred. Yelp and the plurality opinion cite a California Court of
    Appeal opinion and a case from an appellate court in Florida as evidence that
    section 230 prohibits interactive service providers and users from being enjoined.
    (Plur. opn., ante, at pp. 16-18, 27-28.) This nonbinding case law permitting
    section 230 immunity for service providers and users sued directly for injunctive
    relief is not determinative of this case.
    Kathleen R. addressed state law claims filed against an interactive service
    provider seeking injunctive relief and damages. Relying on section 230(e)(3), the
    Court of Appeal explained that “claims for declaratory and injunctive relief are no
    less causes of action than tort claims for damages, and fall squarely within the
    section 230(e)(3) prohibition.” (Kathleen 
    R., supra
    , 87 Cal.App.4th at p. 698.)
    Notably, the court in Kathleen R. did not rely solely on the terms of section
    230(c)(1) to assert a complete immunity; rather, the court looked expressly to the
    section 230(e)(3) requirement that no causes of action may be brought and no
    liabilities may be imposed against interactive service providers. The claims were
    barred, not because the plaintiff sought injunctive relief, but because she brought
    causes of action against a service provider directly. Our understanding of section
    230 does not conflict with Kathleen R: Under section 230(c)(1) and (e)(3), section
    230 immunity may apply to a state law claim filed against a provider that seeks
    injunctive relief. We find no support to go further and interpret section 230 as
    immunizing websites from having to comply with any properly issued state court
    injunction.
    Nor does Yelp or the plurality opinion’s reliance on Medytox compel such a
    conclusion. That Florida court of appeal decision addressed an action for
    declaratory and injunctive relief against Investorshub.com, an interactive service
    23
    provider. 
    (Medytox, supra
    , 152 So.3d at p. 729.) Medytox sued Christopher
    Hawley for defamation and tortious interference after he posted statements about
    Medytox on Investorshub.com. (Ibid.) Medytox requested that Investorshub.com
    remove Hawley’s posts, which contained “allegedly defamatory statements” about
    Medytox. (Ibid.) Investorshub.com removed two of the posts and Medytox sued
    Investorshub.com for failure to remove all of the allegedly defamatory postings.
    (Ibid.)
    The court reasoned that section 230(e)(3) “precludes not only ‘liability,’ but
    also causes of action for other forms of relief” based on state or local law.
    
    (Medytox, supra
    , 152 So.3d at p. 731.) The court explained that “[a]n action to
    force a website to remove content on the sole basis that the content is defamatory
    is necessarily treating the website as a publisher, and is therefore inconsistent with
    section 230.” (Ibid.) That plaintiffs filed an action directly against an interactive
    service provider seeking removal of third party information was an essential fact
    supporting the court’s conclusion. Medytox imposed a different burden from that
    presented here: a burden on the provider to defend itself against a cause of action
    seeking liability for third party speech. No claim was filed against Yelp seeking
    damages or injunctive relief based on posts written by Yelp users. Medytox
    provides no persuasive or controlling authority in favor of Yelp’s position.
    What we find more instructive are practical considerations –– ones
    consistent with the Communications Decency Act and to some extent motivated
    the federal statute. These remain vital as we consider the powers of a sovereign
    jurisdiction whose authority has not been explicitly curbed. Our proposed reading
    of section 230 supports the statute’s purpose to protect service providers from state
    law causes of action and liabilities that treat the provider as the publisher or
    speaker of third party speech. Here, no cause of action seeks to hold Yelp liable
    for its publication of Bird’s speech. We instead address a court ordered solution
    24
    for a victim of defamation that does not infringe section 230’s protections from
    state law causes of action and liabilities against providers for acting as publishers
    or speakers of third party speech. California citizens rely on the power of our
    courts to protect and vindicate their rights. Our interpretation recognizes that the
    statute does not prohibit court crafted remedies for victims of harmful Internet
    content. The plurality opinion is incorrect in its assertion that allowing the
    injunction against Bird to run to nonparty Yelp would contravene Congress’s
    intent to protect providers from defending against claims that treat them as a
    publisher or speaker of third party content. (Plur. opn., ante, at pp. 29-31.) Yelp
    thrust itself into this case by petitioning the superior court to vacate the defamation
    judgment that Hassell obtained against Bird. The court order against Bird
    determined the specifically identified posts were defamatory and should be
    removed. The superior court’s determination regarding Bird’s defamation liability
    was just that — a determination about Bird’s defamation liability, not a claim
    against Yelp requiring it defend itself against a civil lawsuit. In its own terms of
    service, Yelp conveys that it engages in removal of posts, specifying that it can
    “remove, screen, edit, or reinstate User Content from time to time at our sole
    discretion for any reason or no reason, and without notice to you. For example,
    we may remove a review if we believe it violates our Content Guidelines.” Yelp’s
    terms of service specifically contemplate the removal of defamatory posts, as their
    content guidelines caution users against posting content “that is false, intentionally
    misleading, or defamatory.” Yelp could have simply removed the posts, in
    accordance with its terms of service, without incurring any significant litigation
    cost or burden. Nothing is excessively burdensome as a matter of law about the
    removal of posts a California court has deemed defamatory, even if Yelp would
    much prefer to wash its hands of this responsibility.
    25
    Instead Yelp chose to initiate legal proceedings. It did so by petitioning the
    court, on its own motion, to vacate a judgment against a party with whom Yelp
    claims it shares no interests.2 Yelp did so in order to claim complete immunity
    under section 230 and assert defenses on Bird’s behalf. Insofar as Yelp desired a
    venue through which to defend its own speech interest, Yelp’s speech and original
    content are not protected by section 230. Providers may only assert immunity
    from causes of action brought against them that treat the provider as the publisher
    or speaker of content provided by other information content providers –– not
    content generated by the service provider itself. (See § 230(c)(1), (e)(3).) And
    when Yelp created an opportunity to assert its own speech interest, it instead
    argued that Hassell failed to sufficiently prove her defamation claim and subverted
    the First Amendment rights of Yelp users, as third parties. Yelp argued that
    Hassell failed to provide Bird adequate notice of the defamation lawsuit, made
    insufficient efforts to locate Bird, and failed to prove that Bird authored the posts
    at issue. Yelp now claims that it was entitled to an opportunity to be heard
    regarding its own speech interest before the judgment and injunction against Bird
    were entered.
    The plurality opinion posits that our interpretation of section 230 creates
    incentives for plaintiffs to provide little or no prejudgment notice to service
    providers and users. (Plur. opn., ante, at pp. 30-31.) What the plurality opinion
    fails to recognize are procedural safeguards embedded in the process governing
    when an injunction against a party defendant may run to a nonparty like Yelp.
    2       Although this issue is not before us, and Yelp has not chosen to challenge
    this finding, the Court of Appeal determined that “Yelp is not aggrieved by the
    default judgment against Bird” –– the judgment that Yelp sought to vacate.
    
    (Hassell, supra
    , 247 Cal.App.4th at p. 1348.) Yelp’s decision to initiate judicial
    proceedings under Code of Civil Procedure section 663, and to incur the costs
    associated with its motion to vacate the judgment, was self-imposed.
    26
    Under California law, the injunction against Bird may only run to Yelp where
    Yelp has actual notice of the injunction. Under this scenario, notice to Yelp
    occurs before the injunction may be extended, and there is no danger of
    disincentivizing the provision of notice. Even in situations where an injunction
    might conceivably run to a nonparty based on pre-injunction conduct, the record
    must reflect sufficient entanglement of interests and action to warrant a finding of
    aiding and abetting under Berger v. Superior Court (1917) 
    175 Cal. 719
    (Berger)
    and Ross, and the nonparty would otherwise need sufficient notice and opportunity
    to participate in accordance with due process principles. (
    Ross, supra
    , 19 Cal.3d
    at p. 906; Berger, 175 Cal. at p. 721.) That Yelp in this case had considerable
    notice and opportunity to participate in the proceedings underscores that these
    requirements do not categorically prevent responsibility for removal of defamatory
    information from being imposed on a nonparty on the basis of its pre-injunction
    conduct. (See Ross, 19 Cal.3d at p. 909.)
    Given the range of circumstances where state law may properly impose
    responsibility on an entity such as Yelp without imposing “liability,” we question
    whether it was within the ambit of congressional purpose that the statute preclude
    any effective remedy for people defamed or injured by Internet content. Recall
    that here, Bird failed to ever respond in the superior court proceedings. The record
    indicates that she was aware of the lawsuit addressing her posts, as evidenced by
    her request to the San Francisco Bar Association for mediation, but she refused to
    defend her speech in court or comply with the judgment or injunction. Bird is also
    apparently judgment proof. The underlying facts of this case are far from unique,
    and many aggrieved Californians may find themselves in similar circumstances.
    Nothing in the legislative history supports the idea, implicit in the plurality
    opinion’s position, that Congress reasonably sought to deprive victims of
    defamation and other torts committed online of any effective remedy.
    27
    Our reading of section 230 takes account of what it means, practically, to
    let providers spurn state court orders. It considers as well the statute’s express
    directive that section 230 shall not be construed to prevent a state from enforcing
    laws consistent with the section. (§ 230(e)(3).) At core, the plurality opinion
    reads as though it finds section 230 a definitive barrier to imposing any injunctive
    responsibility on service providers. (Plur. opn., ante, at pp. 31-32.) That reading
    of section 230 would render state courts incapable of providing effective relief to
    their citizens when providers make “editorial” decisions that permit defamatory or
    injurious speech to remain on the Internet, even where that speech has been
    deemed unlawful. A complete immunity for interactive service providers under
    section 230 would preclude remedies for victims of defamation where the content
    providers are unavailable, like in circumstances of absentia or death, and where
    the website operator is unsympathetic. Victims would be without recourse where,
    as here, the service provider refuses to remove content even when that content
    violates the provider’s terms of service. And under the expansive immunity Yelp
    demands, harmful statements that could be retracted or removed if made in print
    could remain online indefinitely with no recourse.
    These concerns loom especially large in the context of the modern Internet.
    The Internet has the potential not only to enlighten but to spread lies, amplifying
    defamatory communications to an extent unmatched in our history. The resulting
    injuries to individuals’ reputational interests from defamation, revenge porn, and
    similar content can be grave and long-lasting, and negative effects on businesses
    can be equally or more severe. Speakers on the Internet can reach huge audiences
    across the country and internationally, and the perpetuation of fake, defamatory,
    and harmful content has implications for critical social issues, including consumer
    protection, personal safety, disaster and violence prevention, and government
    independence. The plurality opinion contends that we advance an interpretation of
    28
    section 230 that threatens the promotion of online discourse and thwarts
    Congress’s intent. (Plur. opn., ante, at pp. 30-31.) Not so. Online freedom is not
    so fragile that its existence depends on eviscerating courts’ power to protect
    people from defamatory information or other communications lacking lawful
    protection. Indeed, under our interpretation, a nearly infinite range of interactions
    online remain available –– ones that do not involve the spread of information
    courts have found defamatory or otherwise unprotected by law. Our reading of
    section 230 recognizes Congress’s concerns regarding the availability of
    objectionable and inappropriate online material and its interest in encouraging
    interactive computer service providers to voluntarily restrict access “in good faith”
    to material that is obscene, lewd, harassing, or otherwise objectionable, regardless
    of whether such material is constitutionally protected. (§ 230(c)(2).) That concern
    makes the plurality opinion’s conclusion particularly ironic: it construes a statute
    entitled “Protection for private blocking and screening of offensive material” as
    one meant to promote the limitless perpetuation of offensive online content, rather
    than to protect the voluntary removal and screening of such material. We
    conclude instead that section 230 does not endow an interactive service provider
    with absolute immunity from complying with a court order that includes injunctive
    relief simply because it functions as a publisher.
    III.
    Our analysis of section 230 lends further importance to a procedural and
    remedial question Yelp raised in its petition: may an injunction be extended to a
    nonparty website acting in concert with an enjoined party? From Yelp’s vantage
    point, the answer is a simple no. Hassell’s injunction against Bird therefore may
    not be enforced against Yelp as a nonparty. We disagree. California law is clear
    that injunctions may be enforced against a nonparty that has notice of the
    29
    injunction and aided, abetted, or otherwise acted in concert with or support of the
    enjoined defendant to violate the injunction.
    California’s long-standing practice is to allow enforcement of injunctions
    against certain nonparties — and rightly so. Berger is the seminal case from this
    court regarding injunctions against nonparties. Injunctions are typically binding
    on the parties to the action and their successors. But an injunction may be
    enforced against a nonparty in order to prevent the prohibited action by nonparties
    acting in concert with, or in support of, the enjoined party. 
    (Berger, supra
    , 175
    Cal. at p. 721 [“In matters of injunction, however, it has been a common practice
    to make the injunction run also to classes of persons through whom the enjoined
    party may act, such as agents, servants, employees, aiders, abettors, etc., though
    not parties to the action, and this practice has always been upheld by the courts,
    and any of such parties violating its terms with notice thereof are held guilty of
    contempt for disobedience of the judgment”].) Where a nonparty is in fact, an
    aider and abettor of the enjoined party, the injunction may be imposed upon that
    nonparty. (Ibid.)
    We have affirmed this long-standing principle of California law before.
    (
    Ross, supra
    , 19 Cal.3d at pp. 908-909 [concluding that nonparties were subject to
    an injunction as agents of the named defendants]; In re Berry (1968) 
    68 Cal. 2d 137
    , 155-156 (Berry) [recognizing that “injunctive orders to persons ‘in active
    concert or participation with’ specifically named parties defendant is approved by
    long-standing custom and practice”]). And federal law similarly provides that
    nonparties may be enjoined. The United States Supreme Court in In re
    Lennon (1897) 
    166 U.S. 548
    , 554 explained that it is immaterial whether a
    nonparty had notice of the application for injunction or was actually served with a
    copy of the injunction so long as he had actual notice of the issuing of an
    injunction by the court. This rule was affirmed by the United States Supreme
    30
    Court in Regal Knitwear Co. v. Board (1945) 
    324 U.S. 9
    (Regal Knitwear), as
    cited throughout Yelp’s briefs. And a federal case on which Yelp relies,
    Blockowicz v. Williams (7th Cir. 2010) 
    630 F.3d 563
    , 567 (Blockowicz), also
    explains that pursuant to rule 65(d) of the Federal Rules of Civil Procedure (28
    U.S.C.), nonparties may be bound by an injunction. Yelp’s contention that it may
    not be enjoined because it was not named as a defendant in Hassell’s underlying
    claim is unsupported by California or federal law.
    Under our precedent, an injunction may run to persons through whom the
    enjoined party may act, such as “persons acting in concert with or in support of the
    claim of the enjoined party, who are in fact his aiders and abettors.” 
    (Berger, supra
    , 175 Cal. at p. 721 (original italics).) As we explained in Berger, nonparties
    may be bound by an injunction where they have knowledge of the injunction, are
    servants or agents of the enjoined party, or act “ ‘in combination or collusion with
    them or in assertion of their rights or claims.’ ” (Id. at p. 722, quoting Rigas v.
    Livingson (N.Y. 1904) 
    178 N.Y. 20
    , 24.) Any such parties who violate the terms
    of the injunction “with notice thereof are held guilty of contempt for disobedience
    of the judgment.” (Berger, at p. 721.) The purpose “is simply to make the
    injunction effectual against all through whom the enjoined party may act,” thereby
    preventing the acts prohibited in the injunction from being carried out by other
    persons acting in concert with or in support of the enjoined party. (Ibid.) The
    focus is not only on proper notice to vindicate the due process rights of nonparties
    to whom the injunction may run, but also on whether the nonparty acted in concert
    with or support of the enjoined party. (See 
    Ross, supra
    , 19 Cal.3d at pp. 904, 916
    [upholding a judgment of contempt where the nonparty “conceded that they had
    received notice of the court order . . . and had knowingly voted to defy the order”];
    
    Berger, supra
    , 175 Cal. at p. 723 [vacating a judgment of contempt where there
    31
    was “neither charge nor findings by the lower court of matters showing what
    amounts to a disobedience of the injunction by the petitioner” (original italics)].)
    These concerns are also reflected in rule 65(d)(2) of the Federal Rules of
    Civil Procedure (28 U.S.C.). It specifies that certain nonparties, “who receive
    actual notice” of the injunction and are “in active concert or participation” with the
    enjoined party may be bound by its terms. (Ibid.; see Regal 
    Knitwear, supra
    , 324
    U.S. at p. 15 [whether an injunction may be enforced against a nonparty “depends
    on an appraisal of his relations and behavior and not upon mere construction of
    terms of the order”].) Evidentiary findings assessing a nonparty’s notice and acts
    in concert or participation with an enjoined party may occur at a contempt hearing,
    when the plaintiff seeks to enforce the injunction against a nonparty. (See 
    Ross, supra
    , 19 Cal.3d at pp. 903-904; Regal 
    Knitwear, supra
    , 324 U.S. at p. 16.)
    So Berger, Ross, and Berry clearly establish that California courts may
    enforce an injunction against a nonparty. A nonparty subject to such an injunction
    must not only have notice of it, but must have aided, abetted, acted in collusion
    with or in assertion of the enjoined defendant’s rights, or otherwise acted in
    concert with or support of the enjoined defendant to violate the injunction.
    IV.
    The Court of Appeal affirmed the superior court’s denial of Yelp’s motion
    vacating the default judgment against Bird. In doing so, the Court of Appeal
    concluded that the superior court had authority under settled principles of
    California law to include a provision in the injunction that ordered Yelp to
    effectuate the injunction against Bird by deleting her defamatory reviews from its
    website. 
    (Hassell, supra
    , 247 Cal.App.4th at p. 1355.) Relying on the superior
    court’s observation in its order denying Yelp’s motion to vacate, the Court of
    Appeal reasoned that California law provides that injunctions can be applied to
    nonparties, such as agents, servants, employees, aiders, abettors, etc. (Ibid.)
    32
    Having found no due process violation at the superior court proceedings, the Court
    of Appeal concluded that the superior court had the authority to issue the
    injunction directing Yelp to remove Bird’s posts. (Id. at p. 1357.)
    We do not believe the Court of Appeal was wrong to conclude that Yelp’s
    degree of notice and involvement below assuaged due process concerns. By filing
    and appearing in the superior court to argue its motion to vacate the default
    judgment, Yelp initiated a proceeding through which it had opportunity to
    participate and be heard. The superior court considered Yelp’s motion and held a
    hearing on August 27, 2014. In its papers and at the hearing, Yelp argued that as
    an interactive service provider, section 230 granted it immunity from compliance
    with the injunction because the reviews were provided by a third party. Yelp also
    availed itself of the opportunity to argue that the judgment, to the extent it was
    directed at Yelp, violated its due process rights as a nonparty. Yelp further
    asserted that Hassell did not sufficiently plead or prove their case. Specifically,
    Yelp argued that Hassell did not make any reasonable attempt to locate Bird
    before attempting service, did not prove that Bird was provided adequate notice of
    the action against her, and failed to submit evidence that confirmed Bird created
    the user accounts that authored the reviews at issue. And Yelp declared that the
    injunction against Bird could not bind Yelp because Hassell could not prove Yelp
    acted as an aider or abettor to Bird’s disobedience of the injunction and it merely
    disregarded the injunction upon receiving a copy of the default judgment.
    It is quite clear Yelp was able to participate and assert arguments against
    the entry of the injunction. Yelp did so at a motion to vacate the underlying
    judgment, without the initiation of any contempt proceedings, and after more than
    four months of inaction following the entry of the underlying judgment. Yelp’s
    involvement at the hearing on the motion to vacate the default judgment, before it
    33
    suffered any deprivation of its rights, was functionally equivalent to participation
    at the entry of the default judgment.
    But this due process appraisal does not merge with the separate issue of
    what California law requires before a court imposes an injunction on a nonparty.
    A nonparty may indeed be enjoined where it has notice of the injunction and acts
    as an aider, abettor, or in concert with or in assertion of the enjoined party’s rights.
    Section 230 does not grant a nonparty immunity from compliance with an
    injunction because it functions as a website or because the injunction touches upon
    the website’s role as a publisher. The plurality opinion attempts to characterize
    our explanation that the injunction could run to Yelp under longstanding principles
    of California law as a theory premised merely upon Yelp’s awareness of the
    injunction and its refusal to remove the defamatory reviews. (Plur. opn., ante, at
    pp. 25-26.) This assertion is inaccurate. Rather, we recognize that a judicial
    finding that Yelp had notice of the injunction and aided and abetted Bird’s
    violation of the injunction may authorize the injunction to bind Yelp. Here, the
    Court of Appeal expressly declined to consider the superior court’s aiding and
    abetting determination. 
    (Hassell, supra
    , 247 Cal.App.4th at pp. 1355, 1357.)
    Without an assessment of Yelp’s actions aiding, abetting, or acting in concert or
    with Bird to violate the terms of the injunction, the Court of Appeal’s conclusion
    that Yelp may be specifically directed to remove Bird’s posts appears
    unsubstantiated. The factual determination regarding Yelp’s actual notice of the
    injunction and its participation as an aider or abettor is necessary before the
    injunction against Bird may run to Yelp.
    Although few existing cases find an Internet platform to have acted as an
    aider and abettor, a range of evidence and interactions could support such a
    finding. For example, Yelp cites Blockowicz, a Seventh Circuit Court of Appeals
    case, to argue that its refusal to remove Bird’s posts is mere “inaction” insufficient
    34
    to prove it acted as an aider and abettor to Bird. We are not convinced that logic
    categorically protects Yelp from injunctions requiring removal of unlawful
    content. The Blockowicz court observed that the plaintiffs presented no evidence
    of any contact between the defendants and the website operator or manager after
    the injunction was issued, nor was there any indication that defendants and the
    employees for the website worked in concert to violate the injunction.
    (
    Blockowicz, supra
    , 630 F.3d at p. 568.) What the court concluded is that the
    record indicated the website operator and manager simply did “nothing relevant to
    [the] dispute” after the injunction was issued, so their “mere inactivity is simply
    inadequate to render them aiders and abettors” in violating an injunction directing
    a user to remove defamatory statements from the website. (
    Blockowicz, supra
    ,
    630 F.3d at p. 568.) Here, Yelp’s post-injunction involvement in this case,
    including its legal arguments on behalf of Bird, and its litigation director’s written
    refusal of Hassell’s removal request, suggest that Yelp has gone beyond the “mere
    inactivity” found in Blockowicz. (Ibid.) Moreover, if we believed a court could
    glean no support for an aiding and abetting finding based merely on a provider’s
    failure to remove unlawful content after receiving notice of an injunction, the sum
    of a provider’s conduct could still amount to aiding and abetting.
    By using algorithms to facilitate further distribution of the information in
    question to a defendant’s preferred audiences, for example, or providing certain
    financial support to the enjoined party, the provider could take action deemed for
    the benefit of, or to assist, that party. (See Arista Records, LLC v. Tkach
    (S.D.N.Y. 2015) 
    122 F. Supp. 3d 32
    , 36 [reasoning that active concert or
    participation exists where a nonparty with actual knowledge of the judicial order
    violated it for the benefit of, or to assist, a party subject to the injunction].) An
    injunction may be enforced against a nonparty service provider where the
    provider’s services are knowingly used to facilitate the violation of an injunction.
    35
    (Ibid.) A provider advancing legal arguments on behalf of the defendant or
    seeking to vindicate the rights or claims of the defendant may also be deemed a
    nonparty properly bound by the injunction against the defendant. (See 
    Berger, supra
    , 175 Cal. at pp. 721-722 [reasoning that nonparties may be bound by an
    injunction where they have knowledge of the injunction and act “in combination
    or collusion” with defendants or in assertion of defendants’ rights or claims].)
    Where a service provider engages in these behaviors or otherwise acts in concert
    with a user to spread defamatory information, it would –– at best –– cut sharply
    against section 230’s underlying logic to let the provider enjoy section 230
    immunity. (Barrett, at p. 64 (conc. opn. of Moreno, J.) [concluding that section
    230 immunity is not intended to apply where an interactive computer service
    provider and user are not “authentically independent” and act in concert to defame
    someone].)
    A website’s willful refusal to comply with an injunction, where compliance
    is feasible, may also provide evidence to support a finding that the service
    provider aided, abetted, or acted in concert, combination, or collusion with an
    enjoined defendant. (See 
    Ross, supra
    , 19 Cal.3d at pp. 904, fn. 4, 916.) Evidence
    that a website prominently featured a defamatory review –– to attract viewers or
    for other reasons –– after it had notice of a defamation judgment and injunction
    directing the speaker to remove the defamatory post may indicate the provider has
    acted to violate the injunction in support of the enjoined party. A provider’s
    actions to maintain unlawful Internet posts in concert with a defendant may
    support a factual finding of aiding, abetting, or acting in concert or in support of
    the defendant. So could situations where a defendant has reason to believe her
    content is unlawful but is encouraged by a provider to retain the content, or where
    a defendant attempts to remove unlawful content, but the provider retains the
    content citing its right to use, display, or promote the content under its terms of
    36
    service. The plurality opinion appears to maintain in contrast that section 230
    grants Yelp immunity from compliance with the injunction even where Yelp is
    found to have aided, abetted, or acted in concert with or support of Bird to violate
    the injunction. (Plur. opn., ante, fn. 14 at pp. 25-26.) We are unpersuaded.
    Neither the plurality opinion’s logic nor its reliance upon a nonbinding federal
    case support the conclusion that section 230 would bar as “publication decisions”
    all the conduct that a trial court might rely on to make valid factual findings that
    action in concert or collusion occurred between a service provider and a
    defendant.
    In its order denying Yelp’s motion to vacate the defamation judgment, the
    superior court first cited Ross and Berger to explain how injunctions can apply to
    nonparties under California law. The court then stated three factual findings with
    respect to whether Yelp aided, abetted, and acted in concert or with Bird in
    violation of the injunction. “First, the evidence establishes that Yelp highlighted
    at least one of Bird’s defamatory reviews about the Hassell Law Firm on its
    website by featuring it as a ‘Recommended Review.’ ” Second, the court found
    that Yelp asserted arguments on Bird’s behalf, evidencing a unity of interest
    between Bird and Yelp: “the facts indicate that Yelp is acting on behalf of Bird.
    Yelp moves to set aside the judgment in its entirety, including the portions of the
    judgment that pertain only to Bird. Additionally, in its moving papers, Yelp
    argues, on behalf of Bird, that Hassell failed to establish that Bird actually posted
    the Yelp reviews.” Third, the court found that Yelp’s refusal to delete the
    defamatory reviews “is inconsistent with its own terms of service, which require
    all Yelp.com users to ‘agree not to . . . Violate our Content Guidelines, for
    example by writing a fake or defamatory review. . . .’ ” The court found that
    “Yelp is aiding and abetting the ongoing violation of the injunction and that Yelp
    37
    has demonstrated a unity of interest with Bird” and thus denied the motion to
    vacate the judgment.
    From the hearing transcript, it is clear the superior court heard and asked
    questions about the evidence of Yelp’s conduct to aid, abet, act in concert with or
    support of Bird. These questions explored Yelp’s position in its papers and at oral
    argument, asserting that the underlying default judgment against Bird be vacated,
    that Bird received insufficient notice, and that Hassell failed to prove Bird
    authored the defamatory posts. But the superior court’s order denying Yelp’s
    motion to vacate the default judgment does not apply the law to the facts of this
    case with sufficient detail. For example, the superior court’s finding that Yelp
    acted on behalf of Bird was not accompanied by an explanation of the legal basis
    for the superior court’s conclusion. The superior court may have reasoned that
    under Berger, Yelp may be bound by the injunction because it acted “in assertion”
    of Bird’s “rights or claims” in presenting arguments that Hassell failed to
    adequately serve Bird and submitted insufficient evidence that Bird created the
    defamatory posts. (See 
    Berger, supra
    , 175 Cal. at pp. 721-722.) Yet the order
    does not describe the legal authority on which the court relied to reach its
    determination. Similarly, the superior court may have determined that the letter
    issued by Yelp’s director of litigation asserting that it would not comply with the
    injunction, although removal of the posts was feasible and authorized under its
    terms of service, evidenced a willful refusal to comply with the injunction that
    supported an aiding and abetting finding. (See 
    Ross, supra
    , 19 Cal.3d at pp. 904,
    fn. 4, 916.) But the superior court’s order does not engage in an analysis of the
    legal bases for its conclusion that Yelp aided and abetted Bird in violating the
    injunction.
    Whether Yelp aided, abetted, or acted in concert with or support of Bird’s
    violation of the injunction must be assessed using the proper legal standard for an
    38
    injunction to run to a nonparty, as enunciated in our precedent in Berger and Ross,
    and analyzed with sufficient detail. We would therefore vacate the judgment of
    the Court of Appeal and remand for further proceedings in accordance with the
    legal standard set forth in this opinion.3
    V.
    Our society’s legal commitments balance the value of free expression and a
    relatively unregulated Internet against the harms arising from damaging words or
    private images that people are not lawfully free to disseminate. To honor those
    commitments in this case, we must begin by properly interpreting the evocatively-
    named Communications Decency Act. We must apply the relevant principles of
    due process that guarantee parties a right to their day in court. And we must give
    effect to California laws allowing injunctions to be imposed on nonparties when
    they are aiding and abetting unlawful conduct. No one involved in this litigation
    or affected by our decision today deserves anything less.
    To the extent the Communications Decency Act merits its name, it is
    because it was not meant to be –– and it is not ––a reckless declaration of the
    independence of cyberspace. Nothing in section 230 allows Yelp to ignore a
    3      Justice Kruger believes remand is unwarranted to consider whether Yelp
    aided and abetted Bird’s noncompliance with the court’s order. (Conc. opn. at pp.
    11-13, fn. 5 at p. 13.) Yet it is very much at issue in this case whether Yelp aided,
    abetted, or acted in concert with or in support of Bird. The trial court in this case
    made factual findings that Yelp aided, abetted, and acted on behalf of Bird ––
    conclusions supporting its determination that Yelp may be bound by the
    injunction. The trial court’s factual findings were based on Yelp’s pre- and post-
    injunction conduct, including Yelp’s relationship with Bird through its terms of
    service and as described in Bird’s updated review, Yelp’s legal arguments
    regarding Bird’s claims, and Yelp’s maintenance of the defamatory posts on its
    website. The briefs before us discuss whether the injunction was proper under
    California law, and whether Yelp acted in concert with Bird. Neither section 230
    nor due process law fully resolve, by themselves, whether the injunction was
    properly issued against Yelp.
    39
    properly issued court order meant to stop the spread of defamatory or otherwise
    harmful information on the Internet. Instead the statute’s terms and scheme,
    applicable case law, and other indicia of statutory purpose make clear that Internet
    platforms are not exempt from compliance with state court orders where no cause
    of action is filed against, and no civil liability is imposed on, the provider for its
    publication of third party speech. Yelp may be subject to a properly issued
    injunction from a California court. Where an entity had the extensive notice and
    considerable involvement in litigation that Yelp has had in this case, due process
    concerns are far less likely to impede a court from fashioning a proper injunction
    to prevent aiding and abetting of unlawful conduct. But whether Yelp aided,
    abetted, or otherwise acted sufficiently in concert with or colluded to advance
    Bird’s defamatory conduct must be addressed using the proper legal standard for
    an injunction to run to a nonparty, as we explained in Berger and Ross. Because
    we cannot establish that the superior court made the necessary factual findings
    regarding Yelp’s conduct in this situation, applying a legal standard consistent
    with the views expressed in this opinion, we would vacate the judgment of the
    Court of Appeal and remand for further proceedings not inconsistent with this
    opinion.
    CUÉLLAR, J.
    I CONCUR:
    STEWART, J.*
    *      Associate Justice of the Court of Appeal, First Appellate District, Division
    Two, assigned by the Chief Justice pursuant to article VI, section 6 of the
    California Constitution.
    40
    See last page for addresses and telephone numbers for counsel who argued in Supreme Court.
    Name of Opinion Hassell v. Bird
    __________________________________________________________________________________
    Unpublished Opinion
    Original Appeal
    Original Proceeding
    Review Granted XXX 
    247 Cal. App. 4th 1336
    Rehearing Granted
    __________________________________________________________________________________
    Opinion No. S235968
    Date Filed: July 2, 2018
    __________________________________________________________________________________
    Court: Superior
    County: San Francisco
    Judge: Donald J. Sullivan
    __________________________________________________________________________________
    Counsel:
    Aaron Schur; Davis Wright Tremaine, Thomas R. Burke, Deborah A. Adler and Rochelle L. Wilcox for
    Objector and Appellant.
    Wilmer Cutler Pickering Hale and Dorr, Patrick J. Carome, Ari Holtzblatt and Mark D. Flanagan for
    Airbnb, Inc., Automattic Inc., craigslist, Inc., Facebook, Inc., IAC/InterActiveCorp, Reddit, Inc., Snap Inc.,
    Pinterest, Inc., Thumbtack, Inc., Twitter, Inc., and Yahoo! Inc., as Amici Curiae on behalf of Objector and
    Appellant.
    J. Joshua Wheeler; Katie Townsend, Bruce D. Brown, Gregg P. Leslie and Ariel B. Glickman for The
    Reporters Committee for Freedom of the Press, The Thomas Jefferson Center for the Protection of Free
    Expression, American Society of News Editors, Association of Alternative Newsmedia, BuzzFeed, The
    E.W. Scripps Company, International Documentary Association, Investigative Reporting Workshop at
    American University, The McClatchy Company, Media Law Resource Center, MPA – The Association of
    Magazine Media, National Press Photographers Association, News Media Alliance, Online News
    Association, Radio Television Digital News Association, Reporters Without Borders, The Seattle Times
    Company, Society of Professional Journalists, Student Press Law Center and Tully Center for Free Speech
    as Amici Curiae on behalf of Objector and Appellant.
    Wilson Sonsini Goodrich & Rosati, David H. Kramer, Shelby Pasarell Tsai, Brian M. Willen and Jason B.
    Mollick for Google Inc., as Amicus Curiae on behalf of Objector and Appellant.
    NYU Technology Law & Policy Clinic and Jason M. Schultz for Change.org, Engine, GitHub, Inc., A
    Medium Corporation, Patreon, Inc., SiteJabber and Wikimedia Foundation, Inc., as Amici Curiae on behalf
    Objector and of Appellant.
    Public Citizen Litigation Group, Paul Alan Levy; Juelsgaard Intellectual Property and Innovation Clinic,
    Phillip R. Malone, Jef Pearlman, Daniel Chao and Erica Sollazzo for Public Citizen, Inc., and Floor64, Inc.,
    as Amici Curiae on behalf of Objector and Appellant.
    Page 2 – S235968 – counsel continued
    Counsel:
    Greenberg Traurig, Ian C. Ballon and Lori Chang for Glassdoor, Inc., and TripAdvisor LLC as Amici
    Curiae on behalf of Objector and Appellant.
    Horvitz & Levy, Jeremy B. Rosen, Scott P. Dixler and Matthew C. Samet for ACLU of Northern
    California, ACLU of San Diego & Imperial Counties, ACLU of Southern California, Avvo, California
    Anti-SLAPP Project, Electronic Frontier Foundation, First Amendment Coalition and Public Participation
    Project as Amici Curiae on behalf of Objector and Appellant.
    University of Arizona College of Law and Jane Yakowitz Bambauer for First Amendment and Internet
    Law Scholars as Amici Curiae on behalf of Objector and Appellant.
    Fenwick & West, Andrew P. Bridges, Tyler G. Newby, Guinevere Jobson and Armen N. Nercessian for
    Internet Association and Consumer Technology Association as Amici Curiae on behalf of Objector and
    Appellant.
    Brown White & Osborn, Kenneth P. White and Evelina Gentry for Ava Bird as Amicus Curiae on behalf of
    Objector and Appellant.
    Anette J. Beebe; Gingras Law Office and David S. Gingras for XCentric Ventures, LLC as Amicus Curiae
    on behalf of Objector and Appellant.
    Scott & Cyan Banister First Amendment Clinic at UCLA School of Law and Eugene Volokh as Amici
    Curiae on behalf of Objector and Appellant.
    Duckworth Peters Lebowitz Olivier, Monique Olivier and J. Erick Heath for Plaintiffs and Respondents.
    Harder Mirell & Abrams, Douglas E. Mirell, Charles J. Harder and Dilan E. Esper for Erwin Chemerinsky,
    Valencia Corridor Merchants Association, Derik Lewis, Aaron Morris and Henry Karnilowicz as Amici
    Curiae on behalf of Plaintiffs and Respondents.
    Counsel who argued in Supreme Court (not intended for publication with opinion):
    Thomas R. Burke
    David Wright Tremaine
    505 Montgomery Street, Suite 800
    San Francisco, CA 94111-6533
    (415) 276-6500
    Monique Olivier
    Duckworth Peters Lebowitz Olivier
    100 Bush Street, Suite 1800
    San Francisco, CA 94104
    (415) 433-0333
    

Document Info

Docket Number: S235968

Citation Numbers: 234 Cal. Rptr. 3d 867, 5 Cal. 5th 522, 420 P.3d 776

Filed Date: 7/2/2018

Precedential Status: Precedential

Modified Date: 10/19/2024

Authorities (34)

Noah v. AOL Time Warner, Inc. , 261 F. Supp. 2d 532 ( 2003 )

Richards v. Jefferson County , 116 S. Ct. 1761 ( 1996 )

People v. Acosta , 124 Cal. Rptr. 2d 435 ( 2002 )

Rose v. Superior Court , 19 Cal. 3d 899 ( 1977 )

New York Times Co. v. Sullivan , 84 S. Ct. 710 ( 1964 )

Reno v. American Civil Liberties Union , 117 S. Ct. 2329 ( 1997 )

Barrett v. Rosenthal , 51 Cal. Rptr. 3d 55 ( 2006 )

Chase National Bank v. City of Norwalk , 54 S. Ct. 475 ( 1934 )

Blockowicz v. Williams , 630 F.3d 563 ( 2010 )

christianne-carafano-aka-chase-masterson-v-metrosplashcom-inc-a , 339 F.3d 1119 ( 2003 )

Alemite Mfg. Corporation v. Staff , 42 F.2d 832 ( 1930 )

additive-controls-measurement-systems-inc-plaintiffcounterdefendant , 96 F.3d 1390 ( 1996 )

In Re Lennon , 17 S. Ct. 658 ( 1897 )

People v. Gonzalez , 12 Cal. 4th 804 ( 1996 )

Lochner v. New York , 25 S. Ct. 539 ( 1905 )

Fair Housing Coun., San Fernando v. Roommates. Com , 521 F.3d 1157 ( 2008 )

United States v. Eric Hall , 472 F.2d 261 ( 1973 )

Rigas v. . Livingston , 178 N.Y. 20 ( 1904 )

Scott v. Donald , 17 S. Ct. 262 ( 1897 )

Comfort v. Comfort , 17 Cal. 2d 736 ( 1941 )

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