Law & Regulation

9th Circuit Clears Way for 3,000+ Addiction Suits

The 9th Circuit ruled Section 230 is a defense, not immunity, clearing more than 3,000 suits against Meta, TikTok, Google and Snap over addictive design.

Law & RegulationBy Servola Tech Desk2026-08-125 min read

AI-assisted, edited by humans. | Editor-in-Chief: Leon Soliman | Editorial standards

9th Circuit Clears Way for 3,000+ Addiction Suits

Key takeaways

On August 10, 2026, the 9th U.S. Circuit Court of Appeals rejected a bid by Meta, Google, TikTok and Snap to escape more than 3,000 federal lawsuits alleging their platforms' design features are addictive and harmed young users, with Circuit Judge Jacqueline Hong-Ngoc Nguyen writing in a 24-page opinion that Section 230 "merely provides a defense to liability, not immunity from suit."
The ruling means the four companies cannot use Section 230 to get design-feature claims, covering recommendation algorithms, autoplay, infinite scroll and notification systems, dismissed before trial through an early appeal; they must now raise the defense at trial and can appeal only after a final judgment.
The same day, the court separately denied Meta's request to delay a trial brought by 29 state Attorneys General over claims that Meta unlawfully collected children's data, engineered its platforms to be addictive to minors, and misled the public about safety; that trial started the same week.
This builds on a pattern through 2026: a related bellwether trial already produced a jury verdict against Meta and YouTube, and a New Mexico court separately ordered Meta to pay 567 million dollars on top of an earlier 375 million dollar penalty, plus a five-year decree capping teen usage of Facebook and Instagram.
EU and UK companies with US-facing platforms or US subsidiaries should treat addictive-design features as a genuine litigation-exposure line, not only a compliance topic, and specifically audit the internal documentation behind notification cadence, autoplay defaults and infinite scroll: the same record a DSA or Online Safety Act regulator can inspect is now also discoverable evidence in US civil litigation.

What the 9th Circuit actually decided

On August 10, 2026, the 9th U.S. Circuit Court of Appeals in San Francisco rejected a bid by Meta, Alphabet's Google, ByteDance's TikTok and Snap to reverse a lower-court ruling and escape more than 3,000 federal lawsuits tied to the multidistrict litigation known as In re: Social Media Adolescent Addiction/Personal Injury Products Liability Litigation. The plaintiffs, including individuals and school districts, allege the companies engineered features such as recommendation algorithms, autoplay, infinite scroll and notification systems to be addictive, and that the design caused mental-health harm to minors.

In a 24-page opinion, Circuit Judge Jacqueline Hong-Ngoc Nguyen wrote that Section 230 of the Communications Decency Act "merely provides a defense to liability, not immunity from suit," and that the court therefore lacked jurisdiction to review the lower court's decision before a final judgment. The companies had tried to use an early appeal to get the design-feature claims dismissed before facing a jury; the panel said that route does not exist for this kind of claim.

The distinction matters because many courts, including earlier 9th Circuit panels, have long read Section 230 as an unusually strong pretrial shield against claims tied to user content. This ruling does not touch that protection for content-moderation claims. It does say that claims about how a platform is designed and engineered, rather than what content it hosts, do not automatically qualify for the immediate, pretrial dismissal that content-based claims have often received.

Why 'a defense, not immunity' changes the calculus

The effect is procedural, and that is exactly why it matters. Until now, platforms facing design-based claims could seek an early appeal arguing Section 230 barred the case entirely, hoping for dismissal before years of discovery or a jury trial. The 9th Circuit's answer is that Section 230 is a defense to be raised and tested at trial like any other defense, not a jurisdictional immunity that lets a company skip the trial altogether.

That pushes more than 3,000 lawsuits toward discovery and, eventually, a jury, where internal company records about why a feature was built a certain way become evidence rather than a hypothetical risk. A related bellwether trial already produced a jury verdict against Meta and YouTube earlier in 2026, with TikTok and Snap settling before a verdict; this ruling removes the main procedural exit that the remaining defendants were trying to take before their own trials reach that stage.

The same week, a second Meta trial was allowed to proceed

On the same day, the 9th Circuit separately denied a request from Meta to postpone a trial, brought by 29 state Attorneys General, over allegations that the company unlawfully collected and used children's data, engineered its platforms to keep minors engaged, and misled the public about the safety of its products. That trial began the same week the ruling came down. Meta had argued the trial should wait until its Section 230 appeal was resolved; the court disagreed, for the same reason it gave in the addiction cases: Section 230 is a defense, not a bar on the case proceeding.

Both rulings sit inside a wider pattern building through 2026. Earlier this month, a New Mexico state court ordered Meta to pay 567 million dollars into a youth-safety fund, on top of an earlier 375 million dollar civil penalty from the same case, plus a five-year decree capping teen usage of Facebook and Instagram. Across multiple courts and legal theories, the direction is the same: judges are treating platform design choices as something a jury or a court-ordered decree can reach, not something a pretrial motion resolves.

What EU and UK operators should actually check now

The ruling is American, decided under an American statute, and it does not bind any EU or UK court. But EU and UK regulators, lawyers and platform operators have watched Section 230 for two decades as the benchmark for how far a "the user did it, not us" defense can stretch, because the EU's Digital Services Act and the UK's Online Safety Act were both built assuming that benchmark would eventually narrow for exactly this kind of claim. This ruling, and the New Mexico decree alongside it, is evidence that the narrowing is now happening in practice, not only in policy debate.

The overlap is specific, not abstract: the features named in this litigation, engagement-optimized notification systems, autoplay defaults and infinite scroll, are the same features the DSA's rules on manipulative design for minors and the Online Safety Act's risk assessments already ask platforms to justify. A company that has only ever treated that overlap as a regulatory-compliance exercise should now treat it as a litigation-exposure exercise too.

The useful first step is not a new policy document. It is an audit of the internal paper trail that already exists: the growth and engagement experiments, A/B tests and product-review notes that explain why a notification cadence, an autoplay default or an infinite-scroll pattern was chosen. Under EU and UK rules, that record is something a regulator can inspect. In US litigation, the same record is something a plaintiff's lawyer can subpoena. Any EU or UK business with a US-facing platform or a US subsidiary should know, now, what that record actually says before someone else asks to see it.

Frequently asked questions

Did the 9th Circuit rule that Meta, TikTok, Google and Snap are liable?

No. The ruling decided a procedural question: that Section 230 is a defense the companies can raise and test at trial, not a basis for an appeals court to dismiss the cases beforehand. Liability, if any, will be determined case by case as the more than 3,000 lawsuits move toward trial.

Does this ruling change the law in the EU or UK?

No. It is a US federal appeals court interpreting a US statute, Section 230 of the Communications Decency Act, and it has no direct legal effect in the EU or UK. Its relevance to EU and UK operators is as a signal about how design-choice claims are being treated in a major legal system, not as a rule that applies to them.

What should an EU or UK company with US-facing users actually do first?

Start with an internal audit, not a new policy statement: review the documentation behind features such as notification systems, autoplay defaults and infinite scroll, including any internal experiments explaining why they were built that way. That record is now relevant to both EU and UK regulatory risk assessments and to potential US litigation discovery.

The headline number is 3,000, the lawsuits this ruling keeps alive. The number worth remembering is one: the early-appeal move that let platforms ask a court to dismiss a design-based claim under Section 230 before a jury ever heard it. For two decades that shield was strong enough that few companies had to explain, in front of a jury, why a notification fires at a certain hour or why a feed never stops. That is changing in US courts through 2026, and an EU or UK company tracking only the DSA and the Online Safety Act for this risk is tracking half of it. The other half is discovery, and it does not wait for a regulator to ask first.

Section 230MetaTikTokPlatform LiabilityChild SafetyUS Courts

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