https://www.vox.com/technology/2018/6/4/17425194/facebook-data-privacy-apple-phone-device

According to a report from the New York Times, Facebook struck an agreement with some 60 device makers that allowed them to access data on Facebook users and their friends.

“Every time that a person chooses to share something on Facebook, they’re proactively going to the service and choosing that they want to share a photo, write a message to someone,” Facebook CEO Mark Zuckerberg said in an appearance before Congress in April. “And every time, there is a control right there — not buried in settings somewhere, but right there — when they’re … posting about who they want to share it with.”