Does GPS on your phone spy on you?

A new study from IIT-Delhi has found that the GPS data on Android smartphones can reveal a lot more about you than just your location. Researchers discovered that "fine-grained" GPS data can expose a person's activities, environment, and even the layout of the room they're in.

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The study, published in ACM Transactions on Sensor Networks, proposes a system called AndroCon that uses GPS data to infer information about a person's surroundings. This includes whether they're sitting, standing, or lying down, and whether they're in a crowded or empty room.

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AndroCon can also create indoor floor maps, identifying rooms, staircases, and elevators with a high degree of accuracy. The researchers used a combination of signal processing and machine learning to turn raw GPS data into clear insights.

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The study's findings raise concerns about security and privacy. Any Android app with location permissions could potentially access this sensitive information without user consent.