Hackers stole millions of US military personnel records during months-long data breach

A months-long breach of the Defense Manpower Data Center exposed unencrypted personnel records from October 2025 to mid-July 2026, compromising about 2.8 million living U.S. military personnel and 300,000 deceased individuals. The stolen data included Social Security numbers, names, dates of birth, sex, race, and service details. The Department of Defense has not confirmed any misuse of the information.