Hacktivist leak exposes personal data of 40,000 DHS staff, including undercover ICE agents

Key points

• The leaked database contains records for roughly 40,000 DHS employees and contractors, including approximately 10,000 ICE personnel and over 20,000 Customs and Border Protection staff.
• The data includes sensitive details such as phone numbers, email addresses, and internal job titles, with some records explicitly marking agents as undercover or involved in surveillance and human intelligence.
• The 'Department of Peace' claims to have obtained the data by exploiting a vulnerability in DHS's Okta single sign-on service, though Okta denies any compromise of its systems.
• DHS Secretary Markwayne Mullin's administration is investigating the breach, with officials stating they are working to protect employees and will provide updates as more information becomes available.
• The leak is part of a broader wave of federal data breaches in 2026, following incidents at the Pentagon and FBI that exposed millions of records.

Background

This incident follows a series of high-profile federal data breaches in 2026, including a Pentagon leak exposing 2.76 million military and civilian records and an FBI breach involving sensitive employee data. Previous coverage from our archive highlights the ongoing concerns about the security of government personnel records and the potential risks to undercover agents.

How outlets are covering it

NBC News and WBUR emphasize the exposure of undercover ICE agents and the potential risks to their safety, framing the leak as a security threat. Fox News describes the incident as 'catastrophic' and focuses on the scale of the breach, noting that it includes thousands of ICE and Border Patrol personnel. The Independent highlights the breadth of the leak, noting it includes staff from multiple DHS component agencies, and questions the authenticity of the data, as Reuters could not fully verify the trove but confirmed some details. All sources agree on the approximate number of affected employees and the involvement of the 'Department of Peace' and Distributed Denial of Secrets.

Why it matters

The breach raises significant concerns about the security of federal personnel data and the potential risks to undercover agents. It also highlights the ongoing challenges in protecting sensitive government information and the growing trend of hacktivist groups targeting federal agencies. The leak may also impact public oversight and accountability, as activists argue it will help in filing freedom of information requests and guiding congressional oversight.

What to watch

DHS is actively investigating the breach and working to protect its employees. The agency has stated it will update the public as more information becomes available. The 'Department of Peace' and Distributed Denial of Secrets are likely to continue releasing data, and there may be further legal or political responses to the breach.