Facebook refused to respond to the state’s subpoena requesting the communications of CEO Mark Zuckerberg and other senior executives, according to a Wednesday court filing in California’s ongoing probe of the social media behemoth’s privacy abuses. Attorney General Xavier Becerra has petitioned the court to force the company to comply.

The investigation, which began in 2018 in response to the revelations that Cambridge Analytica had acquired millions of Facebook users’ private data without their knowledge or consent, has expanded to include the platform’s sharing of user data with all third party companies. Over 150 corporations enjoyed privileged access to Facebook users’ private data, including messages, email addresses and other sensitive information, under a secretive partnership that did not involve asking users' permission for the over-sharing.