Fitness app Polar exposed locations of spies and military personnel

A popular fitness app that tracks the activity data on millions of users has inadvertently revealed the locations of personnel working at military bases and intelligence services.

The app, Polar Flow, built by its eponymous company Polar, a Finnish-based fitness tracking giant with offices in New York, allowed anyone to access a user’s fitness activities over several years — simply by modifying the browser’s web address.

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Source: ZDNet