Iran, Hormuz and the Internet-Cable Panic: Can Tehran Really Hit the Global Web?
Claims that Iran could disrupt undersea internet cables near Hormuz are spreading fast. The risk is real, but the viral version may exaggerate both control and impact.
The Strait of Hormuz is usually discussed as an oil chokepoint. Now it is being discussed as an internet chokepoint. Viral posts claim Iran has threatened to attack undersea cables if the United States strikes, warning that 17 cables near Hormuz carry a major share of traffic between Europe, Asia and the United States. The message is designed to terrify markets: this is not just an oil crisis anymore, it is an internet crisis.
The truth is more complicated.
There are indeed submarine cables in and around the Gulf that matter enormously for regional connectivity. The Gulf is dense with energy infrastructure, ports, financial hubs, military facilities and data flows. Damage to cables could disrupt internet access for Gulf countries, cloud services, financial operations, aviation systems, shipping logistics and regional communications. Repairing cables in a war zone would be difficult, slow and expensive.
But the viral claim often jumps too far. Experts have questioned whether Iran can easily control or selectively tax the world’s internet through Hormuz. Many major Europe-Asia cable routes do not simply pass through Iranian-controlled waters in a way that gives Tehran Egypt-style leverage over global data flows. The global internet also has redundancy. Traffic can reroute, although with latency, cost and regional disruption. A cable attack would be serious. It would not automatically “collapse the global economy.”
The most credible version of the story is not that Iran has a magic internet kill switch. It is that Iranian-linked media and officials have explored the idea of using geographic leverage over the Strait of Hormuz not only for oil, but for digital infrastructure. Suggestions have included fees, licensing, cable maintenance control and legal claims under maritime law. That is different from a confirmed military order to cut cables.
Still, the panic is not irrational. Undersea cables are vulnerable. They can be damaged by anchors, earthquakes, sabotage, fishing activity, military operations or covert action. In a high-intensity U.S.-Iran war, cable infrastructure would become part of the escalation map. Iran may not need to destroy the global internet to create strategic pressure. A localized disruption in the UAE, Qatar, Bahrain, Kuwait or Oman could rattle markets and expose how much digital infrastructure depends on a few physical corridors.
The military dimension is even more important. Undersea cables carry commercial data, but also support finance, logistics, military communications, intelligence coordination and energy operations. If a state cannot match U.S. air power, it may look for asymmetric targets. Cables, tankers, pipelines, ports and satellites all become attractive because they turn military weakness into economic pressure.
But there is a deterrence problem for Iran. Cutting cables would not be cost-free. Gulf states would be furious. China, which depends on stable trade and digital infrastructure, might not support such disruption. Insurance markets would panic. U.S. surveillance in the region is intense. Repair crews and cable companies would create evidence trails. A confirmed Iranian attack on cables could give Washington and its allies a stronger justification for escalation.
The headline says Iran could cut undersea cables and crash the internet. The more accurate question is whether Tehran can turn Hormuz into a digital bargaining chip the same way it has turned the waterway into an oil and shipping bargaining chip. That possibility is serious enough without exaggeration.
In the modern Middle East war, chokepoints are no longer only about barrels of oil. They are about bandwidth, cloud access, financial settlement and the invisible nervous system of globalization.