---
format: "aidr-story-markdown/v1"
id: "f66fe21bd866f7467a9f5e1d4fde74bf3403a589b8e11b8610a5e09cc820483b"
canonical_url: "https://aidr.today/f66fe21b?lang=en"
title: "US Expands DeepSeek AI Ban to Cover All Third-Party Software Built Using Chinese Models"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
fallback_fields: []
published_at: "2026-10-28T18:23:05.000Z"
category: "Regulation"
topics: ["deepseek","regulation"]
source_urls: ["https://marketbrief.now/ai/update-us-expands-deepseek-ai-ban-to-cover-all-third-party-software-buil-b48b02e8","https://x.com/ZackKorman/status/2112239605198000220","https://x.com/vector__news/status/2112544814189216011","https://x.com/MarketNews_Feed/status/2112538814472204351","https://x.com/poezhao0605/status/2112258732390261204","https://x.com/rohanpaul_ai/status/2112265351492972953","https://x.com/hrkrshnn/status/2112378502205055259","https://x.com/hamandcheese/status/2112266995202757116"]
summary: "The U.S. Department of Homeland Security has expanded its ban on DeepSeek AI to require federal software vendors to identify and remove all third-party software built using the Chinese company's open-weight models, even if hosted on U.S. servers. The order, issued under the Federal Acquisition Supply Chain Security Act of 2018, mandates civilian agencies to purge any DeepSeek-derived weights from their IT systems and allows exemptions for mission-critical functions with 60 days' notice. China's Commerce Ministry has condemned the ban as discriminatory."
---

# US Expands DeepSeek AI Ban to Cover All Third\-Party Software Built Using Chinese Models

> [Open the canonical story](<https://aidr.today/f66fe21b?lang=en>)

**Published:** 2026-10-28T18:23:05.000Z
**Category:** Regulation
**Topics:** deepseek, regulation

## Summary

The U\.S\. Department of Homeland Security has expanded its ban on DeepSeek AI to require federal software vendors to identify and remove all third\-party software built using the Chinese company's open\-weight models, even if hosted on U\.S\. servers\. The order, issued under the Federal Acquisition Supply Chain Security Act of 2018, mandates civilian agencies to purge any DeepSeek\-derived weights from their IT systems and allows exemptions for mission\-critical functions with 60 days' notice\. China's Commerce Ministry has condemned the ban as discriminatory\.

## Sources

- [Story source](<https://marketbrief.now/ai/update-us-expands-deepseek-ai-ban-to-cover-all-third-party-software-buil-b48b02e8>)
- [Supporting source](<https://x.com/ZackKorman/status/2112239605198000220>)
- [Story source](<https://x.com/vector__news/status/2112544814189216011>)
- [Story source](<https://x.com/MarketNews_Feed/status/2112538814472204351>)
- [Supporting source](<https://x.com/poezhao0605/status/2112258732390261204>)
- [Supporting source](<https://x.com/rohanpaul_ai/status/2112265351492972953>)
- [Supporting source](<https://x.com/hrkrshnn/status/2112378502205055259>)
- [Supporting source](<https://x.com/hamandcheese/status/2112266995202757116>)