China's cyberspace regulator on Thursday summoned U.S. tech giant Nvidia over security risks concerning its H20 AI chips sold in China.

The company was asked to give explanations and submit relevant proof on the issue. This is aimed at safeguarding cyberspace and data security for Chinese users per laws on network and data security and personal information protection, according to the Cyberspace Administration of China (CAC).

Recently, Nvidia's AI chips have been alleged to pose serious security risks.

Some U.S. lawmakers have called for advanced chips exported abroad to be equipped with "tracking and positioning" functions.

In May, U.S. Senator Tom Cotton introduced a bill that would direct the Commerce Department to require location verification mechanisms for AI chips subject to export restrictions, to curb Chinese access to advanced U.S. semiconductor technology.

U.S. AI experts disclosed that the "tracking and positioning" and "remote shutdown" technologies of Nvidia chips have matured, the CAC said in a statement.

U.S. Representative Bill Foster, a Democrat from Illinois who once worked as a particle physicist, said the technology to track chips after they are sold is readily available, with much of it already built into Nvidia's chips.

(With input from agencies. Cover via VCG)