Security firm finds 32 export-barred Nvidia B300 GPUs in China Telecom network

A security firm identified 32 Nvidia Blackwell Ultra B300 chips running inside a China Telecom network. It is unclear where the export-restricted hardware is physically located.

Why it matters: It is concrete evidence that US export controls on top-end accelerators are leaking, even into a state-owned carrier. That raises the odds of tighter enforcement on resellers and cloud access, which sits alongside China's reported $35B order for export-compliant RTX Pro 5500 chips and the US ban on DeepSeek in federal agencies.