“我们芯片不存在后门”，英伟达回应被约谈

Core Viewpoint - The discussion surrounding the potential backdoor risks of NVIDIA's H20 chip has raised significant concerns about its security, particularly regarding the existence of a "kill switch" or monitoring software. In response, the company has issued a statement asserting that its chips do not contain any form of backdoor, kill switch, or monitoring software [1][19]. Group 1: Company Response - NVIDIA emphasizes that the suggestion of implementing a "kill switch" or built-in controls in hardware to prevent remote disabling without user consent poses significant risks and is unnecessary. The company maintains that such hardware backdoors should not be established and adheres to principles of openness and transparency [3][11]. - The company draws a comparison to smartphone features like "Find My Phone" or "remote wipe," stating that these functions are entirely user-controlled and do not equate to hardware backdoors. A "kill switch" would represent a permanent control that users cannot revoke, potentially leading to severe consequences [3][16]. Group 2: Historical Context and Security Principles - NVIDIA cites historical lessons from the 1990s Clipper chip project, which aimed to provide strong encryption while allowing government backdoor access. This approach was deemed flawed as it introduced fundamental vulnerabilities that could be exploited by malicious actors, ultimately undermining user trust in system security [13][14]. - The company asserts that hard-coded single-point controls are fundamentally undesirable and violate basic cybersecurity principles. It advocates for robust security measures through rigorous internal testing and independent validation, adhering to global cybersecurity standards [11][14]. Group 3: Industry Implications - NVIDIA warns that intentionally weakening critical hardware infrastructure could have detrimental effects on the global economy and national security interests. The company believes that such practices should be firmly avoided [5][19]. - The recent concerns have also attracted the attention of the Chinese government, which has requested explanations from NVIDIA regarding potential security vulnerabilities and backdoor issues related to the H20 chip [19].