Hackers Stole Millions of US Military Personnel Records During Months-Long Data Breach

A months-long breach of the Defense Manpower Data Center exposed personal information belonging to roughly 2.8 million living current and former U.S. military personnel and staff, plus records for nearly 300,000 deceased people. Attackers reportedly exploited a file-sharing vulnerability between October 2025 and July 2026, accessing unencrypted records that included Social Security numbers, dates of birth, demographic information, and military service details.