Department of Homeland Security employees' personal information was possibly leaked in a data breach.

Distributed Denial of Secrets, a nonprofit group, posted on its page Wednesday that it released data on over 40,000 DHS workers, including details about officials working in sensitive fields like surveillance and human intelligence.

RELATED: Data breach exposed tens of millions of US drivers' licenses, report says Reuters reports that the DHS sensitive data includes names, phone numbers and email addresses of workers from Immigration and Customs Enforcement, Customs and Border Protection, Homeland Security Investigations, the Cybersecurity and Infrastructure Security Agency, and other DHS component agencies.