Zuckerberg Testifies in Trial Accusing Social Media of Harming Kids

Meta CEO faces questions about Instagram's impact on young users' mental health

Feb. 22, 2026 at 4:07pm

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Mark Zuckerberg, the CEO of Meta (Facebook's parent company), testified in a Los Angeles courtroom as part of an unprecedented trial accusing social media platforms of deliberately addicting and harming children. The plaintiff, a 20-year-old woman, claims her early use of Instagram exacerbated her depression and suicidal thoughts. Zuckerberg defended Meta's practices, saying the company tries to help users, not prey on them. The trial is seen as a bellwether that could impact thousands of similar lawsuits against social media companies.

Why it matters

This trial represents a major legal challenge to the social media industry, with the plaintiff seeking to hold companies like Meta responsible for the negative mental health impacts their platforms can have on young users. The outcome could set an important precedent and lead to changes in how social media companies design and operate their services.

The details

During his testimony, Zuckerberg faced questions about Meta's internal advice on how he should present himself, as well as the company's age verification policies and features like Instagram's cosmetic filters. The plaintiff's attorney argued that social media companies have deliberately designed their platforms to be addictive, while Zuckerberg maintained that Meta tries to help users, not exploit them. The trial is one of three 'bellwether' cases that could influence thousands of similar lawsuits against the industry.

  • The trial began on February 18, 2026 in a Los Angeles courtroom.
  • Zuckerberg testified on February 22, 2026.

The players

Mark Zuckerberg

The CEO of Meta, the parent company of Facebook, Instagram, and other social media platforms.

KGM

A 20-year-old woman who is the plaintiff in the lawsuit, claiming her early use of social media led to depression and suicidal thoughts.

Mark Lanier

The attorney representing the plaintiff, KGM, in the lawsuit against Meta and Google's YouTube.

Paul Schmidt

An attorney representing Meta in the lawsuit.

Adam Mosseri

The head of Meta's Instagram, who previously testified in the trial.

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What they’re saying

“I think a reasonable company should try to help the people that use its services.”

— Mark Zuckerberg, CEO, Meta (fox5vegas.com)

“I disagree with the characterization of your question.”

— Mark Zuckerberg, CEO, Meta (fox5vegas.com)

“I think I'm actually well known to be sort of bad at this.”

— Mark Zuckerberg, CEO, Meta (fox5vegas.com)

What’s next

The trial is expected to continue for several more weeks, with additional testimony from experts and other witnesses. The outcome of this case, along with two other 'bellwether' trials, could have a significant impact on thousands of similar lawsuits against social media companies.

The takeaway

This trial represents a high-stakes legal battle over the responsibility of social media companies for the mental health impacts of their platforms, particularly on young users. The case could set an important precedent and lead to changes in how these companies design and operate their services to prioritize user wellbeing.