March 24, 2026, 7:08 am | Read time: 3 minutes
A recorded jogging session has revealed the location of a French aircraft carrier. The incident highlights how everyday fitness apps can inadvertently disclose sensitive information. Particularly concerning: The data became publicly visible during a military operation in the eastern Mediterranean.
Jogging Data Leads to Military Position Disclosure
Recording running routes via smartwatch and fitness app is a daily routine for many. Often, this happens automatically in the background, without users being aware of the potential consequences. This very routine has now led to a security-related incident involving the French Navy.
According to a report by “Le Monde,” an officer aboard the aircraft carrier “Charles de Gaulle” recorded a jogging session with the Strava app. The recorded route showed several laps in a confined space, suggesting the workout took place on the deck of a large ship. Since the activity was publicly accessible, observers could trace the route on a map. The included GPS data pointed to a location in the eastern Mediterranean west of Cyprus, where the French carrier group was operating at the time.
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Operation in a Geopolitically Tense Situation
The incident occurred during a period of heightened tensions in the Middle East. Following mutual attacks between Israel and Iran and military actions by the U.S., several countries had increased their military presence in the Mediterranean. France also deployed the aircraft carrier “Charles de Gaulle” to the region. In such operations, the exact location of a warship is usually considered highly confidential.
The French Navy confirmed the incident. Military spokesman Guillaume Vernet told the Associated Press that the use of the fitness app did not comply with existing guidelines. The command has taken measures, though they were not specified. Vernet also noted that soldiers are regularly informed about the risks posed by connected devices. This includes apps and social networks with location functions, through which sensitive position data can inadvertently become public.
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Recurring Risk from Fitness Apps
The current incident is not an isolated case. In the past, publicly accessible training data has led to security-relevant insights. For instance, in 2018, detailed movement profiles were evaluated at the provider Polar, revealing the locations of military bases and the whereabouts of soldiers.
Strava has also faced criticism multiple times, as published activity data allowed inferences about patrol routes or deployment locations. This became particularly sensitive when movements of bodyguards were analyzed, indirectly revealing the whereabouts of high-ranking politicians. Such cases illustrate that automatically recorded location data can pose a significant security risk if publicly accessible or if privacy settings are not consistently used.