Nvidia said there are no backdoors or kill switches in its chips, denying an accusation from the Chinese government. The company also urged policymakers to reject proposals for backdoors and kill switches.

Nvidia rejected Chinese accusations that its data center GPUs for AI include a hardware function that could remotely deactivate the chips, which is commonly called a "kill switch." "NVIDIA GPUs do not and should not have kill switches and backdoors," wrote Nvidia's chief security officer.

Nvidia responds to accusations and investigations from Chinese and United States governments.