Stingray, the fake cell phone tower cops and carriers use to track your every move

A stingray is a false cell phone tower that can force phones in a geographical area to connect to it. Once these devices connect, the stingray can be used to either hone in on the target’s location or, with some models, actually eavesdrop on conversations, text messages, and web browser activity. It’s not clear how much the police cooperate with the cell phone carriers on this — in at least some cases, the police have gone to carriers with requests for information, while in others they seem to have taken a brute-force approach, dumping the data of every single user on a given tower and then sorting it to find the parties they’re interested in tracking.