On Wednesday, the investigative reporter Duncan Campbell released a vast swathe of internal emails, reports, and other sensitive documents from the early 2010s that detail Facebook's internal approach to privacy and how it worked with app developers and handled their access to user data.

The documents were originally compiled as part of a lawsuit that the startup Six4Three brought against Facebook for cutting off its bikini-photo app's access to the developer platform. The documents were supposed to remain under seal — but they were leaked. INSIDER