Personal details of more than 40,000 Department of Homeland Security employees and contractors, including thousands of immigration and border officers, have been posted online, according to Reuters and The Washington Post.
The transparency group Distributed Denial of Secrets (DDoSecrets) published the records on Wednesday and attributed them to an entity calling itself "Department of Peace." The data includes names, telephone numbers, email addresses, job titles and email group memberships. Some 21,000 records belong to Customs and Border Protection staff and about 10,000 to Immigration and Customs Enforcement and its Homeland Security Investigations unit.

Reuters said it could not authenticate the entire collection or independently establish how it was obtained, but confirmed details with several employees. DDoSecrets co-founder Emma Best said the information was harvested from the Okta sign-on service used by DHS. Okta said: "Okta is secure, and we have no evidence our data or systems were compromised."
DHS said it was aware of a potential breach and was working on it. Analysts warned that the exposed details could be used for targeted phishing and impersonation attempts.