Washington (CNN) The Pentagon is banning deployed personnel from using fitness trackers, smartphones and potentially even dating apps that use geolocating features that could reveal the user's location.

The ban was announced in a Pentagon memorandum issued Friday and signed by Deputy Secretary of Defense Patrick Shanahan.

"Effective immediately, Defense Department personnel are prohibited from using geolocation features and functionality on government and non-government-issued devices, applications and services while in locations designated as operational areas," the policy memo said.

The Pentagon said in January it was reviewing policies regarding such devices after it was revealed that Strava, a fitness tracking app that maps people's exercise habits, may have inadvertently revealed the locations of security forces around the world.

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