Hackers Expose the Names of Tens of Thousands of DHS Employees

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Hackers Expose the Names of Tens of Thousands of DHS Employees

News.Bloomberglaw • October 29, 2026

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The identities of more than 40,000 Department of Homeland Security employees were exposed in a large-scale data breach on Wednesday.

The hackers released names, phone numbers, and field office assignments for employees working for Immigration and Customs Enforcement, Customs and Border Protection, US Citizenship and immigration Services, the Federal Law Enforcement Training Center, the Cybersecurity and Infrastructure Security Agency, and Federal Protective Service across the country.

15% of the department’s employees are estimated to be affected, according to latest DHS staffing data .

“DHS is aware of a potential breach and is actively working to address the situation swiftly ...

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The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Massive Data Leak Exposes 41,000 DHS Employees A hacktivist group called the Department of Peace leaked personal data of over 41,000 employees from the U.S. Department of Homeland Security (DHS), including Immigration and Customs Enforcement (ICE) and Customs and Border Protection (CBP) agents. The data, named 'Icepick', was obtained from an Okta single sign-on service used by DHS and includes names, job titles, phone numbers, and email addresses. The breach represents about one-fifth of DHS's workforce and reveals sensitive information about undercover operations and surveillance tools. DHS confirmed awareness of the breach and is working to address it, while Okta stated it found no evidence of a compromise in its systems. The leak is seen as a response to intensified enforcement actions by DHS Secretary Markwayne Mullin. This incident follows other recent breaches affecting U.S. federal agencies. 66 sources 65

Extracted Entities

Attack Types (1)

Companies (7)

Customs And Border Protection Cybersecurity and Infrastructure Security Agency Department of Homeland Security Federal Law Enforcement Training Center Federal Protective Service Immigration And Customs Enforcement US Citizenship And Immigration Services

CWE Weaknesses (1)

CWE-200 - Exposure of Sensitive Information