Microsoft bars China-based engineers from Pentagon cloud contracts.
Microsoft has officially blocked China-based engineers from working on U.S. military cloud systems. This move came after growing concerns about national security risks and pressure from U.S. lawmakers. These engineers, hired through third-party contractors, were helping with Microsoft’s cloud services used by the Pentagon and the Department of Defense.
Why was Microsoft using engineers based in China?
The engineers were reportedly involved in writing code for defense-related systems. Although U.S. workers with security clearance were supervising the project, many didn’t have enough technical knowledge to fully understand the code raising cybersecurity alarms.
What triggered the sudden policy change?
A report by ProPublica exposed this setup, and Senator Tom Cotton quickly responded, calling it “reckless” to let engineers from China work on U.S. military systems. He said the Chinese Communist Party poses the “greatest threat to national security,” and demanded immediate action.
What did Microsoft say in response?
Microsoft confirmed on X (formerly Twitter):
“We’ve already made changes to ensure that engineering work on the classified cloud is done only by U.S. personnel.”
They also said no sensitive data was exposed, but still took preventive steps by removing foreign engineers from all defense-related projects.
Is the Pentagon taking this seriously?
Yes. The U.S. Department of Defense launched a full review of all Pentagon-related cloud contracts. Officials later confirmed that no Chinese engineers will be allowed to support or maintain any military cloud services going forward.
Why is this important for U.S. national security?
This isn’t just about who writes code, it’s about who controls the systems that run U.S. defense operations. Cloud platforms handle everything from classified communications to military intelligence. Allowing access to foreign workers, even indirectly, creates a risk of data leaks, hacks, or code manipulation.
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