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.

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,

Nvidia’s H20 chips return to China after a US export ban rollback, but analysts see market share losses from rising Chinese AI competition and tighter regulation.