Two top Facebook executives are leaving the company, and it's not clear what they're moving on to do.
Facebook said Thursday its chief product officer Chris Cox was leaving the company, becoming the highest-ranking executive to depart amid the turmoil at the leading social network. Less than a year ago, he was put in charge of all of Facebook's apps, including its flagship social media site as well as Instagram, WhatsApp and Messenger.
In his blog post, Zuckerberg said that Cox had told him that he planned to move on several years ago, but that Cox chose to hold off on leaving until the company made more progress combating misinformation and Russian meddling - controversies that erupted in the wake of the 2016 election. Instead, the leaders of each app will report to Zuckerberg.
Fidji Simo will take over as the head of the Facebook app.
Zuckerberg's statement indicated that Cox had been looking to move on from Facebook for some time, but that he stayed on longer to meet some crucial company needs.
"This is an important change as we begin the next chapter of our work building the privacy-focused social foundation of the future", Facebook CEO Mark Zuckerberg wrote in a statement.
While Zuckerberg also said that Cox had spoken before about his desire to leave the company, that his departure is tied directly to Facebook's so-called privacy pivot, is significant.
The departures of Cox and Daniels come a day after a technical issue that limited use of Facebook and Instagram for most of Wednesday.
"As Mark has outlined, we are turning a new page in our product direction", Cox wrote in a statement. As of last spring the heads of Instagram and WhatsApp report in to him. It's a product vision attuned to the subject matter of today: a modern communications platform that balances expression, safety, security, and privacy. "This will be a big project and we will need leaders who are excited to see the new direction through".
Perhaps more than anyone else at Facebook - even more than COO Sheryl Sandberg - Cox was a sounding board for Zuckerberg on product ideas.