China Summons Nvidia Over Alleged ’Backdoor Safety Risks’ in H20 Chips

Chinese cyberspace regulators have called Nvidia to account for potential security vulnerabilities in its H20 chips, which they claim could be remotely tracked and disabled. The Cyberspace Administration of China demanded detailed explanations and documentation from the U.S. chipmaker regarding these alleged backdoor risks.

Nvidia firmly denies the allegations, stating its chips contain no such remote access capabilities. The controversy emerges just weeks after the TRUMP administration lifted restrictions, allowing Nvidia to resume H20 chip sales in China—a move CEO Jensen Huang had celebrated during a recent Beijing visit.

This development marks another flashpoint in the ongoing U.S.-China tech rivalry, where national security concerns increasingly collide with commercial interests. Should Beijing substantiate these claims, it could disrupt Nvidia's renewed access to the critical Chinese market.