A trial has commenced for an $8 billion lawsuit brought by Meta investors against Mark Zuckerberg and other company leaders. The lawsuit stems from the 2018 Cambridge Analytica privacy scandal, alleging that Meta executives failed to adequately protect user data, leading to significant financial losses for investors. The plaintiffs argue that Zuckerberg and other leaders were aware of the privacy vulnerabilities and did not take sufficient action to prevent the misuse of user data by Cambridge Analytica.