Industrial policy and supply chains
2026-04-26
12 min
12 sources
Submarine Cable Economics and Security 2026: The Fragile Backbone of the Hyperscaler Internet
Roughly 600 subsea cables carry 99 percent of intercontinental traffic, yet four manufacturers, four installers, and a thinning insurance market sit downstream of Google, Meta, Microsoft, and Amazon, while Red Sea, Baltic, and Taiwan Strait incidents reprice the network's geopolitical risk.
The global submarine cable system, mapped at roughly 600 in service systems and about 1.6 million route kilometres by TeleGeography, has quietly become the most concentrated piece of critical infrastructure in the digital economy. Hyperscalers now finance more than 70 percent of new transatlantic and trans Pacific capacity, four cable man...