Cybersecurity Under the Ocean: Submarine Cables and US National Security

By Justin Sherman
Wednesday, January 18, 2023, 9:59 AM

Most internet users' online experience is wireless, but in reality, hundreds of submarine cables, laid across the ocean floor around the world, are what carry 95 percent of intercontinental internet traffic. Submarine cables' security and resiliency are vital to the global internet as we know it—but this infrastructure faces many risks that policymakers must help tackle.