The order's summary of risks says DeepSeek's most widely used applications work through a prompt-and-response process that requires presenting information to the model, and that this may result in the transfer of sensitive data to the PRC if used by U.S. government employees or vendors.

The exact words it rests on

DeepSeek's most widely used applications function through a prompt-and-response process that requires presenting information to the model, and which may result in the transfer of sensitive data to the PRC if used by U.S. government employees or vendors.

What the source said when we opened it, on 20 Oct 2026.

The source

https://www.federalregister.gov/public-inspection/2026-21447/order-exclusion-and-removal-of-deepseek-products-from-federal-civilian-executive-branch-information
2026-10-20

Open the sourcearchived copy

Checked

Checked by the notis newsroom on 20 Oct 2026, against the source above.

In the story

DHS orders DeepSeek products removed from civilian federal IT systems 20 Oct 2026