Pentagon data breach hits military personnel
The gist
A vulnerability in a Pentagon HR file-sharing system exposed unencrypted personal data of military personnel.
The breach may affect about 4 million people; investigators don't know who accessed it.
How it unfolded
- Oct 2025 to Jul 16, 2026Unauthorized users accessed files on a server containing unencrypted personally identifiable information in a DMDC file-sharing system, according to a breach notification letter.
- Jul 16, 2026DMDC discovered a vulnerability in a file-sharing system, according to a notification sent to an affected individual.
- Sep 18, 2026Notification was sent to an individual whose information was contained in the affected files.