DHS Orders Removal of DeepSeek AI Products from Federal Civilian Systems and Bans New Purchases

The U.S. Department of Homeland Security (DHS) has mandated that federal civilian agencies remove all DeepSeek products and any third-party services developed using DeepSeek implementations from their information technology systems. Additionally, agencies are prohibited from purchasing new IT products or services from the Chinese AI developer, Hangzhou DeepSeek Artificial Intelligence Co., Ltd., or its affiliates. This order, issued by Homeland Security Secretary Markwayne Mullin under the Federal Acquisition Supply Chain Security Act of 2018, was published in the Federal Register on October 20, 2026.