The US ordered civilian agencies to remove DeepSeek — including apps built on it
A Federal Register notice published 20 October goes beyond a purchasing freeze. Agencies must take DeepSeek-based products out of their IT, and third-party tools built on the models are covered too. Private use is not banned.
In this article
The US Department of Homeland Security has ordered federal civilian agencies to stop buying technology developed by Chinese AI company DeepSeek and to remove it from their systems. The order was published in the Federal Register on 20 October 2026 as document 2026-21447, docket DHS-2026-0628.
The scope is wider than DeepSeek's own chatbot. The notice says agencies must remove "all DeepSeek and DeepSeek-affiliate products, and third-party products and services developed using DeepSeek implementations" from civilian agency information technology. It also excludes those products, and services from affiliated companies, from federal civilian agency procurements.
What the order actually covers
The notice rests on the Federal Acquisition Supply Chain Security Act of 2018, which lets the government block products it considers a supply-chain risk. DHS says the order follows a recommendation from the Federal Acquisition Security Council. The notice was signed for publication by the department's general counsel, James H. Percival II.
Two limits matter. First, this is about federal civilian agencies, not a nationwide ban: nothing in the notice stops a private individual or company from using DeepSeek. Second, the Department of Defense is reported to be outside this particular order, even though other parts of the US government had already restricted DeepSeek.
TechCrunch reported that the order covers agencies such as Treasury, State and Justice, and that agencies can request exceptions. CNBC reported that agencies may ask for relief, including more time to comply, by sending a written justification to DHS within 60 days of the order's issuance, and that the order itself was issued in July and made public this week.
Why DHS says it acted
According to TechCrunch's reading of the order, DHS is worried that data from US government users could be accessible to Chinese authorities under Chinese law, and that the models may carry security vulnerabilities. Those are the department's stated reasons; the public notice summarises the order but does not lay out the full evidence behind the Federal Acquisition Security Council's recommendation.
The move is part of a wider pattern. Congress restricted DeepSeek in intelligence-community systems in December 2025, and some Commerce Department bureaus had already told staff it was banned on government devices. This order extends the restrictions to civilian agencies and, importantly, to existing systems rather than only new purchases.
China's foreign ministry pushed back. Spokesperson Mao Ning said Beijing opposes "overstretching the concept of national security" and "politicizing technology and trade issues", and said China would safeguard the rights and interests of Chinese companies, according to TechCrunch.
What it means for you
If you work for, or sell to, a US federal civilian agency, this is an inventory problem, not just a procurement one. Any tool in the stack that was built on DeepSeek models — including a third-party product whose marketing never mentions the underlying model — may now be in scope. Ask your security or procurement team how they track model provenance, and keep a record of what each AI tool is built on.
If you are building AI products for government customers, the practical lesson is that the model underneath your app is now part of the compliance surface. An app that wraps a foreign open-weight model can inherit the model's procurement risk even when the app itself is American.
For everyone else, the direct effect is limited. The order does not ban DeepSeek for consumers or private companies in the US. It does, however, make it harder to assume that a cheap model is a safe choice for work that touches government data.
What we could not verify
The signed order is reproduced as page images in the Federal Register appendix. Its deadlines, exception procedure and reporting requirements could not be read directly from the official text, so details such as the 60-day window come from CNBC's reporting rather than our own reading. DHS has not published a public list of affected products, and it is not clear how agencies will identify third-party tools that use DeepSeek under the hood.
Main sources: the Federal Register notice of 20 October 2026 (91 FR 66346, Docket DHS-2026-0628); TechCrunch, 20 October 2026; CNBC, 20 October 2026.
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