$NVDA - CHINA'S CYBERSPACE WATCHDOG SUMMONS NVIDIA OVER H20 CHIP SECURITY RISKS China's cyberspace regulator on Thursday summoned U.S. tech giant Nvidia over security risks concerning its H20 AI chip sold to China. The company was asked to give explanations and submit relevant proof materials on this 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).