US appeals court allows social media addiction lawsuits against Meta, TikTok to proceed
A U.S. federal appeals court denied social media companies' attempts to dismiss thousands of lawsuits alleging their platforms cause addiction and mental health harm in young users, ruling that Section 230 of the Communications Decency Act does not provide immunity from such liability. The decision allows consolidated litigation from individuals, state attorneys general, and school districts to proceed, following a bellwether trial where Meta and YouTube were found liable in March 2026.
What happened
On August 10, 2026, the U.S. Court of Appeals for the Ninth Circuit denied appeals by Alphabet's Google, Meta, Snap, and ByteDance's TikTok to dismiss thousands of consolidated lawsuits alleging their social media platforms encourage addictive usage in young users.
The companies had invoked Section 230 of the Communications Decency Act as a defense, claiming it bars litigation alleging they failed to warn the public that social media can lead to addictive behavior. The court ruled that Section 230 provides a defense 'not an immunity from suit,' meaning the companies appealed too early in the process to rely on this immunity.
Reported impact
Social media platforms are reported to have designed their products in ways that caused addictive behavior and harmed users' mental health, particularly among young people.
In March 2026, Meta and YouTube were held legally liable in a bellwether trial, with a jury awarding $3 million in compensatory damages and $3 million in punitive damages to a 20-year-old plaintiff. Meta separately faced a state court ruling in New Mexico ordering it to pay $375 million over misleading users about social media's impact on children's mental health, and another $567 million fine for creating a public nuisance.
Index analysis
The ruling allows thousands of pending lawsuits from individuals, state attorneys general, and school districts to move forward. Snap and TikTok had settled before trial began in late January 2026, with the Snap settlement occurring before the trial concluded.
Governance controls
The court's decision affirms that Section 230 does not provide blanket immunity for failures to warn about product harms, requiring social media companies to face litigation over allegations of addictive design and inadequate warnings.
Classification
Sources and evidence
This record was researched and written by the Index, based on the following original reporting.