China has accused Nvidia of embedding a backdoor into its H20 chip, stirring tensions between Beijing and the U.S. The Cyberspace Administration of China claims that the chip contains location tracking and remote shutdown capabilities, raising significant national security concerns. These allegations surface just as Nvidia resumes H20 exports to China, following a temporary lift of U.S. restrictions. However, specifics on the backdoor claims remain vague. Nvidia has yet to comment. Meanwhile, China is actively boosting its domestic AI chip production, reducing reliance on foreign manufacturers. U.S. lawmakers are divided over renewed H20 sales, fearing risks to national security. This high-stakes technology conflict highlights the growing scrutiny over export controls and strategic chip supply chains.