China's AI Rise Sparks Security Concerns and Regulatory Scrutiny

China's growing use of AI models has raised security concerns, prompting regulatory actions. Lawmakers investigate US corporate use of Chinese AI models. Microsoft's stock is impacted by the scrutiny of a cloud AI loophole.

US lawmakers are escalating scrutiny of American companies' exposure to Chinese-built AI models. The House Committee on Homeland Security and the House Select Committee on China are jointly investigating the growing adoption of AI systems developed in China, and as an initial step have sent letters to companies including Airbnb and the AI coding startup Cursor seeking details on their use of, or exposure to, Chinese-developed AI .

Separately, China is weighing restrictions on overseas access to its most advanced AI models, a move that could further reshape how US firms evaluate the security of Chinese AI tools they currently rely on.

MSFT shares slipped as lawmakers targeted a so-called cloud AI loophole that lets Chinese firms, including ByteDance, Ant Group, Meituan and Tencent, access powerful US-built AI models through Microsoft's Azure cloud rather than through restricted chip exports. ByteDance alone is reportedly on pace to spend more than $1 billion a year on Microsoft's cloud and AI infrastructure. Because existing export controls target physical semiconductors and computing hardware, cloud-based access to AI capability has largely escaped the same oversight, and bipartisan lawmakers have introduced legislation aimed at closing that gap.

The scrutiny adds a new front to the broader US-China tech rivalry and could pressure Microsoft and other cloud providers to tighten customer vetting, even as the underlying congressional investigation into Chinese AI adoption by domestic firms remains in its early stages .

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