A French aircraft carrier was tracked in real time via a sailor’s Strava activity, exposing a persistent operational security flaw.

Le Monde revealed that France’s aircraft carrier Charles de Gaulle was tracked in real time through an officer’s activity on the Strava app. A sailor unknowingly shared running data from the ship, exposing its location in the Mediterranean. The French sailor’s public Strava profile, set as “public,” revealed the near real-time location of the aircraft carrier in the Mediterranean, near Cyprus and Turkey.