Emails written by Facebook’s chief and his deputies show the firm struck secret deals to give some developers special access to user data while refusing others, according to MPs.
A cache of internal documents has been published online by a parliamentary committee.
It said the files also showed Facebook had deliberately made it “as hard as possible” for users to be aware of privacy changes to its Android app.
Facebook had objected to their release.
It said that the documents had been presented in a “very misleading manner” and required additional context.