DeepSeek banned from U.S. federal civilian agencies under new DHS order

DeepSeek has been banned from U.S. federal civilian agencies following a new order from the Department of Homeland Security (DHS). This directive, detailed in a document found at public-inspection.federalregister.gov/2026-21447.pdf, restricts the use of DeepSeek within these government entities. The ban signifies a significant policy change affecting technology procurement and usage across federal civilian operations, as reported by reuters.com.

This order marks the first time a specific AI developer has been banned from U.S. federal civilian agencies, unlike previous broad policy guidelines.