All companiesCOMPANY / FRONTIER COVERAGEUS Department of Homeland SecurityTYPECompanySIGNALS5FIRST SEENOct 19, 2026LAST SEENOct 21, 2026ALSO KNOWN ASDHSRecent signalsChina criticizes the US DHS's DeepSeek ban, vowing "resolute countermeasures" while rejecting allegations from the FBI and AI labs of illicit distillation (Ephrat Livni/New York Times) Oct 21, 2026U.S. Orders DeepSeek Removed From Federal Civilian Systems, Bans New Purchases Oct 21, 2026US bans DeepSeek across federal agencies, putting AI supply chains under scrutiny Oct 20, 2026DHS bans DeepSeek products across US federal civilian agencies Oct 20, 2026The US DHS orders all federal civilian agencies to remove DeepSeek's tech from their IT systems and prohibits future procurement of its products and services (Connor Hart/Wall Street Journal) Oct 19, 2026RELATEDDeepSeekAI regulationALL COMPANIESLATEST SIGNAL