Meta knew that its tools for protecting teenagers on Instagram were largely ineffective, witnesses testified at the trial in California where 29 US states are accusing the social media giant of lying…

The social media giant is being sued by four states who allege it designed Facebook and Instagram to hook kids — and lied to the public about the risks.

Meta knew that its tools for protecting teenagers on Instagram were largely ineffective, witnesses testified at the trial in California where 29 US states are accusing the social…