Pentagon Data Breach Impacts Millions of US Military Personnel

Pentagon Data Breach Impacts Millions of US Military Personnel

The US government is notifying nearly three million current and former military staff that their personal information was stolen during a breach of the Pentagon’s personnel records. The stolen information included Social Security numbers, names, dates of birth, contact information, demographic details, and information about military jobs.

The data breach notification from the Defense Manpower Data Center (DMDC) stated that attackers exploited a vulnerability in an unnamed file-sharing system and had access to the database from October 2025 to July 2026. The breach affected 2.8 million living people and around 300,000 who are deceased. The US military currently has approximately 1.3 million active personnel. 🚨

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