US Department of Homeland Security ordered federal civilian agencies to remove and stop buying DeepSeek AI products
The U.S. Department of Homeland Security ordered federal civilian agencies to remove DeepSeek AI products from their IT systems. The order also bars them from buying covered DeepSeek products, including third-party services built on DeepSeek. Reports say the order was issued in July and made public in October. DHS cited risks that sensitive information could be exposed to China, that intelligence could be generated about U.S. individuals or agencies, and that malware could be introduced. The order was issued under the Federal Acquisition Supply Chain Security Act of 2018. It covers the Treasury, State and Justice departments, excludes Department of Defense systems, and allows exceptions for national security systems. It follows earlier bans on government devices by the Department of Commerce and the U.S. Navy, and restrictions in several states.
First reported October 20, 2026 · Added to the register October 31, 2026 · 4 sources
- Developer
- DeepSeek
- Country
- United States
- When it happened
- Not stated in the sources
- First reported
- October 20, 2026
What this means for you
Could this affect you?
If you are a US federal civilian agency or sell software to one. US federal civilian agencies must remove covered DeepSeek products and may not buy them, including third-party products built on DeepSeek. Reports say the order also applies to contractors and third parties doing business with the US government.
What to check
- Inventory your software and AI integrations, including multi-model gateways, for DeepSeek components.
- Document any DeepSeek components you find.
- Check software lists and contracts for covered DeepSeek technology.
- Check network traffic for covered DeepSeek technology.
Areas of your AI programme this touches
Timeline
- October 20, 2026First reported
- October 20, 2026The restriction took effect at the end of July but was made public this week; it applies to agencies including the Treasury, State and Justice departments, while Department of Defense systems are excluded.[3]
- October 20, 2026IBTimes reported that the order also applies to contractors and third-party organizations doing business with the U.S.[2]
- October 21, 2026Federal agencies can request exceptions by submitting a written justification to DHS within 60 days of the order's issuance. Beijing opposed the ban, with Chinese spokesperson Mao Ning telling Reuters that China opposes the over-generalization of national security, and China's Ministry of Commerce also expressed dissatisfaction with the move.[4]
Every fact and its source (10)
- Risks cited by DHSExposure of sensitive information to China, intelligence on U.S. individuals or agencies, malware“using the technology could expose sensitive information to China, potentially generate actionable intelligence about U.S. individuals or government agencies, and introduce malware or other security vulnerabilities”[1]
- Scope of the procurement banCovers third-party tools built using DeepSeek“The directive also prohibits agencies from purchasing covered DeepSeek products and services, including third-party tools developed using the Chinese AI model.”[1]
- ExceptionsNational security systems and secure compartmented information systems“with exceptions for national security systems and secure compartmented information systems”[1]
- Earlier federal restrictionsDepartment of Commerce and U.S. Navy had already banned DeepSeek on government devices“the Department of Commerce and the U.S. Navy had previously prohibited the AI service on government devices”[1]
- Legal basis of the orderFederal Acquisition Supply Chain Security Act of 2018“DHS issued the exclusion and removal order under the Federal Acquisition Supply Chain Security Act of 2018.”[1]
- Timing of the restrictionTook effect end of July, made public this week“The restriction took effect at the end of July but was made public this week.”[3]
- Scope of the orderTreasury, State and Justice included; Defense excluded“It applies to agencies including the Treasury, State and Justice departments, while Department of Defense systems are excluded.”[3]
- Exception processWritten justification to DHS within 60 days“submitting a written justification to DHS within 60 days”[4]
- China's responseBeijing opposed the ban“China consistently opposes the over-generalization of national security”[4]
- Scope extendedApplies to contractors and third parties“It also applies to contractors and third-party organizations doing business with the U.S.”[2]
Sources
- Homeland Security Bans DeepSeek AI Across Federal Agencies Over Security Risksitechpost.com · October 20, 2026
- China-Based DeepSeek's AI Products Banned From Use By Government, Contractorsibtimes.com · October 20, 2026
- US Bans DeepSeek AI From Civilian Government Systems Over Security Concernsrttnews.com · October 20, 2026
- US bans use of China's DeepSeek AI in federal agencies, cites security concernsamericanbazaaronline.com · October 21, 2026
How this record is classified. Severity N: a legal action or test finding, not a harm. Evidence: Confirmed, meaning a company, official or court statement.
The facts in At a glance and in Every fact and its source are quoted from the sources listed. The summary, What the AI did and What this means for you are written from those sources and checked against them automatically before publication. Records reflect what has been disclosed, not everything that has happened. Incidents are found through news feeds and the GDELT Project.
