Is Facebook Scanning Your Chats?
Facebook’s Messenger app

Your private chats and messages on Facebook may not be as private as you think. Facebook employs a technology that scans posts and chats for criminal activity.

Facebook’s Chief Security Officer, Joe Sullivan notes that, “We’ve never wanted to set up an environment where we have employees looking at private communications, so it’s really important that we use technology that has a very low false-positive rate,” he said. Additionally, he noted that Facebook doesn’t focus on pre-existing friendships.