Hackers stole millions of US military personnel records during months-long data breach

The U.S. government is reportedly alerting millions of current and former U.S. military service members and staff that their personal information was stolen during a months-long breach of the Pentagon’s personnel records, the latest in a spate of thefts involving federal workers’ data in recent months. A data breach notification from the Defense Manpower Data Center (DMDC) shared on Reddit says that several unauthorized users exploited a security vulnerability in an unspecified file-sharing system over several months between October 2025 and mid-July 2026. The breach exposed personally identifiable information, including Social Security numbers, alongside a person’s name, date of birth,…