With two unprecedented trial defeats, big tech firms face crisis akin to that faced by cigarette makers in the 1990s

In the span of just two days, the most powerful social media company in the world faced a more severe public reckoning than it has in years.

Jurors in California and New Mexico gave back-to-back verdicts this week that for the first time ever found Meta liable for products that inflict harm on young people. For years, lawmakers, parents and advocates have raised red flags over how social media can hurt children, but now the tech firms are being held to account via court rulings that could set long-lasting precedents.

A jury in New Mexico ordered Meta to pay $375m in damages on Tuesday over claims that its products led to child sexual exploitation, among other harms. The following day, a jury in California ordered Meta and YouTube to pay $6m over claims that both companies deliberately designed addictive products to hook young users.

These cases were the first to go to court, and soon will be followed by more trials from two coordinated groups of more than 2,000 plaintiffs, including families, school districts and state attorneys general, who have brought lawsuits against Meta, YouTube, TikTok and Snap.