Global Race to Protect Submarine Cables From Sabotage Intensifies

Governments and telecommunications companies are accelerating efforts to protect undersea fiber optic cables that carry the majority of global internet traffic, as concerns about potential sabotage The United States and its allies are deploying new technologies including distributed acoustic sensing to monitor cable installations for un Submarine cables handle approximately 99% of intercontinental data traffic, making them critical infrastructure for global communications, financial transactions, and government operations. Most cables run through shallow waters near coastlines, where they are accessible to surface vessels and submersible equipment. Intelligence agencies have warned that Russia and China possess capabilities to sever or tap undersea cables. The warnings have prompted new international coordination on cable protection and accelerated efforts to build redundant cable routes that can maintain connectivity if primary lines are disrupted. New monitoring systems can detect unusual vessel activity near cable routes and identify physical disturbances to the cables themselves. Several nations are also reviewing regulations governing cable protection zones and penalties for anchor strikes or intentional damage. The initiative reflects broader concerns about hybrid warfare tactics targeting civilian infrastructure that underpins military and economic capabilities.