
Chinese Device Patent Fuels Fears of Undersea Cable Sabotage - Regtechtimes
Underwater cables are like the invisible highways of the internet. They stretch across oceans, carrying almost 95% of global communication, including phone

Chinese university applies for undersea cable cutter patent
Chinese patents for tools to cut undersea cables have been discovered.
I guess all Vessels from China needs to be halted for inspection before allowing to sail anywhere near those cables. And this of course applies to Russia as well.