Sam's News — security — 2026-09-29

Security

8 Pentagon Defense Manpower Data Center Breach Exposes Records of 3 Million People

The Defense Manpower Data Center (DMDC), which maintains sensitive personnel records for the U.S. military and federal employees, suffered a significant data breach through a file-sharing system vulnerability. Unauthorized users accessed unencrypted files containing Social Security numbers, names, birth dates, and military job information for over 3 million individuals between October 2025 and July 2026.

• Breach affected 2.76 million living individuals and 294,000 deceased former defense personnel or dependents
• Unauthorized access occurred between October 2025 and discovery on July 16, 2026
• Exposed data included Social Security numbers, names, dates of birth, contact information, and military job details
• Pentagon offered one year of free credit monitoring to affected individuals
• No evidence of data misuse detected at time of disclosure

Sources: Cybernews AI Web Searched, Stars and Stripes AI Web Searched