A historic “bellwether” trial began in the California Superior Court of Los Angeles County, pitting social media giants Meta, TikTok, and YouTube against a 19-year-old plaintiff identified as K.G.M. This case marks the first time Big Tech must defend its product designs, such as infinite scroll and notification loops, before a jury. K.G.M. alleges that these “attention-grabbing” features led to a severe addiction starting at age 10, fueling depression and suicidal thoughts.
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The trial is a critical test for over 2,200 similar lawsuits filed nationwide by families, school districts, and state governments. While Snap Inc. reached an undisclosed settlement with the plaintiff on January 20, 2026, the remaining defendants are fighting the claims. Meta CEO Mark Zuckerberg is expected to take the witness stand, where he will argue that the platforms are not the cause of the youth mental health crisis. YouTube executives plan to separate their platform from “typical” social media, claiming their video-centric model operates differently than Instagram or TikTok.
#Meta, #TikTok and #YouTube are facing a high-profile California trial over claims that their platforms’ addictive designs harmed a young user’s mental health, a case that could reshape accountability for social media’s impact on children.#Forbes
For more details: 🔗… pic.twitter.com/LrX47zYZzg
— Forbes Middle East (@Forbes_MENA_) January 26, 2026
Lawyers for the plaintiff are using a strategy reminiscent of the 1990s tobacco trials, arguing that these companies sold a “defective product” designed to override a child’s self-control. If the jury finds the companies negligent, it could erode Section 230, the federal law that has shielded platforms from liability for decades. A verdict against Big Tech could lead to billions in damages and forced redesigns of how apps interact with minors globally.
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