Thousands of DoD personnel may have had their private data leaked — US government admits 20,000 could be affected
A year after a cybersecurity incident, the US Department of Defense (DOD) has begun notifying affected individuals about exactly what happened.
In February 2023, cybersecurity researcher Anurag Sen discovered a US government email server that sat without a proper password to protect its content – essentially, leaking sensitive information to anyone who knew where to look.
The exposed email server was hosted on Microsoft’s Azure government cloud for the Department of Defense, allowing it to share sensitive, but still unclassified data. This service offers servers that are physically disconnected from commercial customers, and was part of an internal mailbox system that held some 3TB of internal military emails, some of which referred to U.S. Special Operations Command (USSOCOM), a military unit running special operations.
Consequences yet to be determined
The database was secured a day after the news broke, but now, almost exactly a year later, the DOD started mailing affected individuals, notifying them of the incident.
As per TechCrunch, the breach notification letter was sent out on February 1 to roughly 20,600 individuals. It said that “numerous email messages were inadvertently exposed to the Internet by a service provider,” between February 3 and February 20, 2023.
“As a matter of practice and operations security, we do not comment on the status of our networks and systems. The affected server was identified and removed from public access on February 20, 2023, and the vendor has resolved the issues that resulted in the exposure. DOD continues to engage with the service provider on improving cyber event prevention and detection. Notification to affected individuals is ongoing,” said DOD spokesperson Cdr. Tim Gorman in an email to TechCrunch.
While we now know how many people were affected by the breach, we still don’t know if any threat actors found the database before Sen did.
More from TechRadar Pro
A year after a cybersecurity incident, the US Department of Defense (DOD) has begun notifying affected individuals about exactly what happened. In February 2023, cybersecurity researcher Anurag Sen discovered a US government email server that sat without a proper password to protect its content – essentially, leaking sensitive information to…
Recent Posts
Archives
- June 2026
- May 2026
- April 2026
- March 2026
- February 2026
- January 2026
- December 2025
- November 2025
- October 2025
- September 2025
- August 2025
- July 2025
- June 2025
- May 2025
- April 2025
- March 2025
- February 2025
- January 2025
- December 2024
- November 2024
- October 2024
- September 2024
- August 2024
- July 2024
- June 2024
- May 2024
- April 2024
- March 2024
- February 2024
- January 2024
- December 2023
- November 2023
- October 2023
- September 2023
- August 2023
- July 2023
- June 2023