Entity
Pentagon Data Breach (2026)
A Pentagon data breach exposed Social Security numbers and personal data of more than 3 million people tied to the U.S. military, including 2.76 million living individuals and 294,000 deceased, prompting expected litigation.
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A Pentagon data breach exposed the Social Security numbers and other personal information of more than 3 million people connected to the U.S. military (Top Class Actions, October 16). A defense official said the breach affected 2.76 million living people and another 294,000 who have died, according to a major news outlet (Top Class Actions, October 16).
## Why It Matters
This is a major federal data breach with significant scale, likely to trigger class action litigation, congressional scrutiny, and questions about the Department of Defense's data security practices. It is likely to generate follow-on lawsuits and regulatory responses.