Background location is GPS or network-based location access that continues after an app leaves the foreground. On Android, it is a sensitive permission because it can reveal a user’s movements over time, not just a single point on a map.
It matters in cyber security because location data is highly personal and can be abused for covert tracking, profiling, or stalking if an app requests more access than it needs or fails to explain how it uses that data. Defenders look for clear consent prompts, least-privilege permission design, visible indicators, and strict checks on when location updates are collected, stored, or sent. In real attacks, abuse usually comes from app-layer logic flaws, such as an app continuing to report location in the background without proper user awareness or authorization, rather than from a flaw in the operating system itself.