Sheryl Sandberg says Facebook knew about Cambridge Analytica two-and-a-half years ago but they didn’t check

  1. Sheryl Sandberg says Facebook knew about Cambridge Analytica two-and-a-half years ago but they didn’t check  Business Insider
  2. Facebook secretly deleted messages Mark Zuckerberg sent on Messenger  The Verge
  3. Facebook deleted messages sent by Mark Zuckerberg from recipients’ inboxes  Fast Company
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