A new undersea cable cutter developed by Chinese researchers has been successfully tested by the Haiyang Dizhi 2 research ship at a depth of 11,483 feet (3,500 meters). This technology, which can cut cables at depths up to 13,123 feet (4,000 meters), raises significant security concerns as it follows a series of suspected sabotage incidents targeting submarine communications and power cables globally. The device utilizes an electro-hydrostatic actuator and a diamond-coated grinding wheel to slice through cables armored with steel, rubber, and polymer. The trial marks a significant step in the engineering application of deep-sea technology, which has been developed by both military and civilian organizations in China. The potential for misuse of such technology is alarming, particularly given the increasing involvement of Chinese-registered ships in damaging subsea infrastructure.