A campaigner from a political pressure group protests as founder and CEO of Facebook Mark Zuckerberg failed to attend a meeting on fake news held by Parliament's Digital, Culture Media and Sport committee in London November 27, 2018.
Cox, 36, worked closely with Zuckerberg through the company's ups and downs, having joined up about 20 months after Facebook was hatched in 2004 in Zuckerberg's Harvard dorm room. In addition to being one of Facebook's earliest employees and a pivotal decision maker on core products like the News Feed, Cox was also widely assumed to be next in line should Mark Zuckerberg ever step away from his perch.
Zuckerberg said he does not plan on hiring anyone to fill Chris Cox's chief product officer role.
The departures of Cox and Daniels come a day after a technical issue that limited use of Facebook and Instagram for most of Wednesday.
The company is facing multiple federal investigations over data privacy, stagnating user growth in its most lucrative markets, and a record-low reputation with the public.
The founding executives of Facebook-owned Instagram and WhatsApp have also recently left the company.
Zuckerberg said on Thursday that Olivan will now lead the effort to integrate Facebook apps, a key move as the company encrypts conversations on more of its messaging services and makes them compatible. I'm deeply grateful for everything Chris Cox and Chris Daniels have done here, and I'm looking forward to working with Will and Fidji in their new roles as well as everyone who will be critical to achieving this vision.
Will Cathcart, vice president of product management, will replace Daniels. Considering WhatsApp is a platform already focused on privacy and being one of the only Facebook apps to have end-to-end encryption at this time, it's quite surprising to see Daniels leaving just a week after Facebook's privacy-focused announcement.
Daniel was in India a year ago where he met IT Minister Ravi Shankar Prasad to discuss ways to sanitise WhatsApp amid several lynching episodes that happened owing to the spread of rumours on the platform.