DHS Moves to Prohibit Chinese AI Platform DeepSeek in Civilian Federal Operations

The Department of Homeland Security announced plans to bar the use of the Chinese-developed artificial intelligence model DeepSeek, along with any affiliated services, across all civilian federal agencies. The directive, slated for publication in the Federal Register on Tuesday, reflects growing concerns about supply‑chain security and foreign influence in government‑run AI systems.

Agency officials cited the Federal Acquisition Supply Chain Act as the legal foundation for the ban, noting that the legislation obligates federal entities to safeguard procurement processes against risks stemming from foreign adversaries. The act requires a thorough assessment of technology sources, and DHS says DeepSeek failed to meet the required standards.

According to the notice, the Federal Acquisition Office conducted a comprehensive review of DeepSeek’s architecture, data handling practices, and potential vulnerabilities. The assessment concluded that the model’s origin in China presented a heightened risk of unauthorized data access, intellectual‑property leakage, and possible manipulation that could compromise sensitive government operations.

While the prohibition applies specifically to civilian agencies, the move signals a broader shift in how U.S. officials are approaching the integration of foreign AI tools. In recent months, multiple departments have tightened procurement rules for high‑risk technologies, emphasizing transparency, traceability, and domestic sourcing wherever feasible.

Industry observers note that the ban could have ripple effects for vendors that embed DeepSeek components into broader software suites used by the federal government. Companies may need to replace or re‑engineer affected products to remain compliant, a process that could entail additional costs and development timelines.

Stakeholders anticipate that the Department of Homeland Security will issue further guidance on compliance deadlines and reporting requirements. The agency has also indicated that it will monitor the evolving AI landscape to ensure that future acquisitions align with national‑security priorities while still fostering innovation within the public sector.