Google Maps Knows Where You've Been — and So Do the Police

Google Maps is one of the most used apps on the planet, with over a billion monthly active users relying on it for navigation, business discovery, and travel planning. But the service is also one of the most prolific location data collectors in history. Through its Location History feature, Google Timeline, and background location services, Google Maps generates a granular record of users' physical movements — data that has become a goldmine for advertisers, a surveillance tool for law enforcement, and a privacy nightmare for civil liberties advocates.

Google's location data collection operates on multiple levels. When users actively navigate with Google Maps, the app tracks their route in real time. But even when Maps is not in active use, Google's location services on Android devices periodically ping cell towers, Wi-Fi access points, and GPS satellites to estimate the user's position.