Meta Platforms has gone on trial in Tennessee over allegations that Instagram was deliberately designed to hook children and teenagers into compulsive use, and that the company misled the public about how safe the platform is for young people. The case is a consumer-protection enforcement action brought by the state — not a private injury claim — and it puts the design of a social-media product, and the reach of a federal liability shield, directly before a jury.

Jury selection began in Nashville on 20 July 2026 in State of Tennessee v Meta Platforms, Inc. and Instagram, LLC, a civil enforcement action filed in October 2023 by Tennessee Attorney General Jonathan Skrmetti. The seven-week trial, in the Chancery Court of Davidson County, will first decide whether Meta violated the Tennessee Consumer Protection Act. Meta denies the allegations.

What Tennessee alleges

The Attorney General’s Office claims Meta failed to disclose internal research linking Instagram use to harm among young people, and that product features — including autoplay, Reels, notifications and disappearing content — were built to keep younger users engaged. The complaint further alleges that founder and chief executive Mark Zuckerberg was warned by employees about the platform’s effect on teenagers but did not fund sufficient measures to reduce the risks. The theory is one of deceptive and unfair business practices: not that any single post caused harm, but that the company misrepresented the safety of a product it designed.

Meta’s defence and the Section 230 question

Meta rejects the claims, pointing to age-appropriate defaults, parental controls and other safeguards for teenage users. Crucially, it also argues that Tennessee is really trying to hold it responsible for material posted by users, and that Section 230 of the federal Communications Decency Act shields platforms from liability for third-party content. How the court handles that argument matters well beyond this case: states have increasingly framed their suits around a platform’s own design choices and disclosures precisely to sidestep Section 230, and Tennessee’s case is a test of whether that framing holds.

How the trial is structured

The trial is split in two. If the jury finds that Meta breached Tennessee law, the case moves to a second phase in which the judge weighs financial penalties and possible changes to Instagram. The Tennessee Consumer Protection Act allows penalties of up to $1,000 for each violation — a figure that can multiply dramatically across a large user base — and the state is also seeking injunctive relief requiring changes to the features it considers harmful. For Meta, the injunctive exposure may matter as much as any monetary penalty.

Part of a wider wave of litigation

The Tennessee trial is one front in a broad campaign over young users. Earlier in 2026, a New Mexico jury imposed $375 million in civil penalties after finding Meta had misled consumers about the safety of Facebook, Instagram and WhatsApp. Meta and Snap Inc. face a separate trial beginning on 27 July in a claim brought by a Florida teenager identified as R.K.C., and a federal trial involving 29 states is scheduled for 18 August in California. Taken together, the cases mean the design of social platforms will be litigated repeatedly through the second half of 2026.

What it means for platforms and in-house counsel

For technology and consumer-facing companies, the case is a study in modern regulatory risk. State attorneys general have become aggressive enforcers, and consumer-protection statutes — with their per-violation penalties and injunctive powers — give them leverage that traditional tort claims lack. The recurring theme across these suits is disclosure and design: what a company’s own research showed, what it told users, and whether product features were engineered in ways a jury might view as unfair. For in-house counsel, that puts a premium on how internal safety research is documented and acted upon, and on aligning public safety representations with what the product actually does. However Nashville’s jury rules, the trial will be watched as a bellwether for whether design-and-disclosure theories can carry these cases past the Section 230 shield.