Leaked Facebook documents that include emails, chats, presentations, spreadsheets, and meeting summaries show how Mark Zuckerberg and Facebook’s board and management team played dirty.
Zuckerberg, along with his board and management team, found ways to tap Facebook’s trove of user data — including information about friends, relationships and photos — as leverage over companies it partnered with.
In some cases, Facebook would reward favored companies by giving them access to the data of its users. In other cases, it would deny user-data access to rival companies or apps.
Basically, everything Facebook has said in public, they are doing the exact opposite in private.