Washington in July cleared Nvidia to resume sales of the H20 chips to China, reversing an effective April export ban. Beijing has since sought supporting documentation on potential risks, including vulnerabilities,

As reported by Bloomberg, Nvidia was summoned by "Beijing authorities" over suspected security risks with its H20 chips. Nvidia is said to have been asked to explain potential risks by the Cyberspace Administration of China, and whether or not Nvidia's chip had a backdoor, which could be accessed and logged remotely without the consent of owners.

NVIDIA has been called in by Chinese regulators over claims that its H20 AI chip poses security risks, putting billions in potential sales at stake.