Deep-Sea Cable-Cutting Capability: A Looming Threat to Global Internet Infrastructure

China's demonstration of deep-sea cable-cutting technology at 3,500 meters depth reveals a critical vulnerability in global internet infrastructure—undersea cables that carry over 99% of international data traffic. This capability, combined with documented cases of suspected Chinese-linked cable sabotage incidents worldwide, raises urgent questions about the physical security of telecommunications networks. The technology threatens not only internet connectivity but also critical power and communications infrastructure, potentially becoming a geopolitical weapon in future conflicts.