Undersea fibre-optic cables are usually hidden from public view, but they now sit near the centre of global trade resilience. According to Britannica, they carry about 95% of international data, making them as important to modern commerce as ports, canals and shipping lanes. That data includes financial transfers, cloud services, customs systems, logistics visibility tools and the day-to-day communications that keep supply chains moving.
The strategic significance of those cabl...
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es is becoming harder to ignore. A report cited by the U.S.-China Economic and Security Review Commission warned that China is expanding its ability to sever submarine cables in a future conflict, while CSIS has argued that the infrastructure deserves far greater attention in transatlantic security planning. The point is not simply that cables can be cut. It is that the global economy has become dependent on a network that is both physically exposed and politically sensitive.
That vulnerability is no longer theoretical. Tom’s Hardware reported that Google and Meta have delayed parts of their cable projects running through the Red Sea because of security concerns, a route that carries roughly 20% of global internet traffic. The same report said recent cuts near Jeddah disrupted traffic and increased latency, underscoring how a single incident can ripple across continents. In parallel, investment in undersea communications cables has surged, with spending reaching $13 billion between 2024 and 2026, double the amount from 2022 to 2024, as major technology firms pour money into new routes to support AI and cloud demand.
For supply chain managers, the lesson is straightforward: the digital layer of trade is now a core operational dependency. A container move may depend on booking systems, payment platforms, supplier portals, warehouse software and real-time visibility tools. If those systems slow down or fail, physical goods may still be on the water, but the organisation can lose the ability to release them, track them, pay for them or communicate about them.
This is why undersea cables should be treated as supply chain infrastructure, not just telecom assets. The same thinking applies to cloud platforms, data centres, satellite backups, payment rails and enterprise software. A shock in one layer can cascade into the others, affecting fuel prices, insurance costs, customer commitments and production schedules.
The risk profile is also changing because more logistics operations are being automated and AI-enabled. Those systems depend on constant data flows. They can improve responsiveness, but they also deepen reliance on stable communications networks. In that sense, AI does not reduce infrastructure dependence; it often intensifies it.
That leaves companies with new questions to ask. Which workflows fail if real-time data is degraded? Which systems need regional redundancy? Can critical processes continue in a limited-connectivity mode? Are supplier, carrier and customer platforms usable during an outage? These are no longer technical edge cases. They are becoming board-level resilience issues.
The old map of chokepoints was drawn in water and concrete. The new one also runs through cables on the seabed.
Source: Noah Wire Services
