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Adam Mosseri (C), head of Instagram, arrives at the Ronald V. Dellums Federal Building & United States Courthouse as Meta is on trial over social media addiction in Oakland, California, on August 25, 2026.
KARL MONDON/AFP via Getty Images
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KARL MONDON/AFP via Getty Images
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OAKLAND, Calif. – Instagram’s leader, Adam Mosseri, took the stand on Tuesday to discuss a feature introduced in 2021 aimed at helping teens manage their time on the app. He revealed that its adoption was lower than expected and expressed regret for not addressing the issue sooner.
Legal representatives from California, Colorado, Kentucky, and New Jersey have filed a lawsuit against Meta, Instagram’s parent company, alleging that both Instagram and Facebook were deliberately designed to be addictive for children and to collect their data. Meta’s lawyers have countered these claims in an Oakland courtroom, arguing that the company was mindful of overuse risks and made efforts to mitigate them.

During the testimony, Mosseri discussed the “Take a Break” feature, which prompts teens to take a pause after extended app use. Evidence presented showed only 1.8% of teens used it. Mosseri admitted these reminders had limited impact.
The feature became default for teen accounts in late 2024, rendering initial low engagement irrelevant, Mosseri noted. However, Jason Slothouber from the Colorado Attorney General’s office pointed out this change occurred post-lawsuit in 2023.
The states claim Meta failed to disclose the feature’s ineffectiveness to users and parents, violating consumer protection laws. Slothouber mentioned a blog post by Mosseri asserting 90% of users kept the feature on, without noting the low initial usage.
Mosseri confirmed that there was no way at that time for parents to know that only 1-2% of teens would use the feature and that Meta has never disclosed this figure. Mosseri highlighted that “Take a Break” and “Quiet Mode,” which mutes notifications, were among several initiatives to counteract teen overuse.
“Solving these issues requires multiple approaches,” Mosseri stated.


This trial is part of a growing number of cases against tech companies following studies and public health advisories indicating social media’s potential harm to young users’ mental health.
Mosseri, who began at Meta as a product designer in 2008, has led Instagram since 2018. Meta reported in July that Instagram’s daily active users reached 2 billion, with a significant portion being young users according to a 2024 Pew Research Center survey.
Slothouber questioned Mosseri about internal discussions regarding a presentation on problematic content exposure for teens, noting lawyers advised limiting Mosseri’s data access to manage “litigation exposure.”
Mosseri claimed no awareness of this, but acknowledged the desire for accuracy and truthfulness in documents.
In questioning Meta’s priorities, Slothouber asked if those handling data might better understand its relevance than lawyers, to which Mosseri agreed.
Mosseri defended Meta’s commitment to teen safety and criticized the selective use of information in media and legal contexts.
“Parents deserve comprehensive information, unlike selective reporting,” he commented.
This case holds substantial stakes for Meta, with potential penalties estimated at $1.4 trillion, equating to Meta’s Nasdaq equity value. Some experts liken this case to the significant tobacco litigation of the 1990s.
Mosseri is expected to continue his testimony on Wednesday, with the trial projected to last five more weeks.


