Turkey launches probe into Facebook over data leak Facebook logo [Mustafa Çiftçi - Anadolu Agency] April 5, 2021 at 3:00 pm Turkey's Personal Data Protection Authority (KVKK) on Monday launched a direct investigation into Facebook over a recent user data leak, Anadolu reports. According to information received by Anadolu Agency, the body took the decision to initiate an ex officio investigation after discussing the issue at a meeting on reports that the data of 533 million Facebook users were shared on a hacker platform. According to the Business Insider news website, a user on a low-level hacking forum on Saturday published the phone numbers and personal data of 533 million Facebook users in 106 countries.