Most folks just click 'accept' on any permissions dialog pop when using an app. They don't care what 'discover local network' or 'use bluetooth' means. So, fo

Most folks just click 'accept' on any permissions dialog pop when using an app. They don't care what 'discover local network' or 'use bluetooth' means. So, for many, it's just installing the app and it's collecting/signaling with their permission. Independently, your phone transmits on bluetooth frequencies with a MAC, and that MAC is unique to your phone, so while it might not be linked back to you by a specific app, other apps might report (say, they play bluetooth audio or something), and get indexed and correlated elsewhere. https://www.skyhook.com https://www.skyhook.com check out something like this for more info...