Fitness apps are developed to track daily activity, record training patterns and key locations, as well as user profiles with sensitive, identifying information. Polar Flow is risky because it is also used by military personnel whose locations should remain concealed. Researchers found the apps Explore tracking feature can easily leak user names, profiles pictures and location information of 6,400 high-level personnel from 69 countries, intelligence officers included. Polar released a statement claiming no data was leaked, but they did turn off the feature following the report.”]