In a letter to Sen. Wyden (D-Ore.), the Pentagon confirmed that the Army, Air Force, Navy, Marine Corps, and Special Operations Command have all disabled advertising tracking on their government-issued devices. The changes apply to iPhones, Android devices, and Windows computers managed across the federal military enterprise network.
The protections were rolled out earlier this year, with the Air Force implementing its changes in July, according to the letter.
The move aims to prevent adversaries, including hostile governments, from using location data collected by apps on troops' devices to target them on the battlefield or within military bases. Location data is commonly shared with third-party companies and data brokers, who sell the information on the commercial market. Disabling the advertising identifier makes it significantly harder to identify an individual, as their location data blends with that of other users who have also disabled the identifier.
Sen. Wyden, a known privacy advocate on the Senate Intelligence Committee, raised the issue earlier this year after finding that unnamed foreign adversaries had used commercially obtained location data to target U.S. troops in the Middle East. While he commended the military's action, Wyden cautioned that personal devices carried by troops and contractors onto bases remain a potential source of exposure for service members and facilities.
The news also highlights a broader tension: the U.S. intelligence community and the FBI have acknowledged purchasing similar location data for surveillance and intelligence collection without a warrant.