U.S. federal civilian agencies must remove DeepSeek products from their information technology systems, along with any third-party products or services "developed using DeepSeek implementations," under a Department of Homeland Security order.
They may also no longer buy information technology products or services from the Chinese AI developer or its affiliates
Homeland Security Secretary Markwayne Mullin issued the order, dated July 24, 2026, under the Federal Acquisition Supply Chain Security Act of 2018, and the department published it in the Federal Register on October 20. The notice does not define "DeepSeek implementations."
Under the 2018 law, the Federal Acquisition Security Council recommends exclusion and removal orders, and three officials may issue them: the Secretary of Homeland Security for civilian agencies, the Secretary of Defense for the Defense Department and national security systems, and the Director of National Intelligence for the intelligence community.
The DeepSeek order therefore covers only what civilian agencies buy and run. It does not restrict companies or the public.
The 2018 law was first used in 2025, when the Director of National Intelligence excluded Acronis, a Swiss cybersecurity and data protection company, from intelligence community procurement and ordered its products removed from intelligence community systems.
Executive agencies "shall comply with exclusion and removal orders," the law says. An agency can ask the official who issued an order for an exception, and under the council's regulations the request must be in writing and give a compelling justification.
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