Pentagon data breach exposes personnel records of 3M+ service members
The Pentagon's Defense Manpower Data Center (DMDC) is notifying over 3 million military personnel that hackers stole their data in a breach of the HR management system in October 2025. The full scope and identity of the attackers remain unconfirmed. This is a major compromise of sensitive personnel data, raising risks of targeted espionage and identity theft.
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United States — 192 developments
Pentagon Data Breach: 3M+ Personnel Records Compromised
A data breach at the Pentagon's Defense Manpower Data Center (DMDC) in October 2025 has compromised personnel records, including Social Security numbers, for over 3 million current and former US military and civilian personnel. The incident represents a significant national security and identity theft risk, with the full scope of data exfiltration and attacker identity remaining unconfirmed.