Pentagon HR System Breach Exposes Personnel Records of Over 3 Million Military Personnel
Unauthorized access to the Defense Manpower Data Center compromised sensitive data, with notifications beginning in October 2026
Key Takeaways
- Over 3 million military service members affected by breach of Pentagon HR system
- Breach occurred in October 2025; notifications began in October 2026
- Defense Manpower Data Center (DMDC) human resources management system was compromised
- Sensitive personnel data exposed; specific categories of data not yet disclosed
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