Another recent post from Reddit on a related topic: https://www.reddit.com/r/privacy/comments/7mxn9i/is_facebook_listening_and_creating/ https://www.reddit.com

Another recent post from Reddit on a related topic: https://www.reddit.com/r/privacy/comments/7mxn9i/is_facebook_listening_and_creating/ https://www.reddit.com/r/privacy/comments/7mxn9i/is_facebook... A lot of circumstantial evidence for extreme pervasive surveillance by Facebook apps is mounting. Edit: another possibility is that other apps are doing the monitoring and selling the data to Facebook or to data brokers that then sell it to Facebook. Lots of "free" apps ask for every permission. In any case security researchers now have something new to tear apart in 2018.