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Nvidia

on Tuesday rejected Chinese accusations that its data center GPUs for artificial intelligence 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 David Reber in a blog post on Tuesday.

The blog post comes after the Cyberspace Administration of China said last week that it needed Nvidia to provide documents about what it called security vulnerabilities in the H20, Nvidia’s data center AI chip intended for the Chinese market. The regulator specifically mentioned “backdoor” security risks, according to the New York Times.