Chris Cox, Facebook's chief product officer who's been with the company for 13 years, announced Thursday he was leaving the company. He was joined by WhatsApp head Chris Daniels — two departures that may signal some displeasure with CEO Mark Zuckerberg's new privacy-focused plans. Last week, Zuckerberg unveiled a plan to spin Facebook, Instagram, and WhatsApp's messaging features into a "privacy-focused communications platform." Cox mentioned the project in his goodbye message to Facebook, and said it needs "leaders who are excited to see the new direction through." Cox was one of Facebook's first 15 engineers. Daniels had overseen WhatsApp since its founders left the company amid "disagreements" with Zuckerberg last year. Facebook has been embroiled in numerous scandals related to user data privacy in the last year.

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