Can Iran Cut the World’s Internet? The Undersea Cable Threat Explained

The battlefield is no longer just land, air, or sea.

Strategic Policy & Background

It is now data.

As tensions escalate in West Asia, a new fear is surfacing:

What if undersea internet cables become the next target?

Because if they do, the consequences could go far beyond missiles and oil.

The Claim: “Iran Can Cut the Internet”

The narrative gaining traction suggests that Iran could target undersea cables in choke points like the Strait of Hormuz or the Red Sea, potentially disrupting global internet.

But here’s the reality check:

There is no verified official statement confirming that Iran has directly threatened to cut global internet cables.

What is real, however, is the risk.

Why These Cables Matter;

Nearly 95% of global internet traffic flows through undersea fiber-optic cables, not satellites.

Critical chokepoints include:

• Strait of Hormuz

• Bab el-Mandeb (Red Sea)

These regions carry cables linking:

• Europe ↔ Asia

• Middle East ↔ India

• Africa ↔ Global networks

A disruption here can hit India, Gulf nations, Europe, and beyond.

How Real Is the Threat?

1. Technically Possible

Cables lie on the seabed, sometimes just 200 meters deep.

They can be damaged by:

• Anchors

• Mines

• Deliberate sabotage

Even accidental damage can cause global outages.

2. Not Easy to “Shut Down the Internet”

The internet is not one cable — it’s a network of hundreds.

Traffic can be rerouted. A complete shutdown is extremely difficult.

Defense & Geo-Political Implications

But slowdowns, outages, and economic disruption? Very possible.

3. War Makes Repairs Impossible

In conflict zones:

Repair ships cannot enter safely. Damage can last weeks or months.

The real danger is not destruction — but prolonged disruption.

Geopolitical Angle: A New Weapon?

If cables are targeted, it changes warfare itself.

Because undersea cables carry:

• Financial transactions (~$10 trillion daily)

• Military communications

• Cloud infrastructure

• AI data flows

This turns them into strategic assets — and strategic targets.

India is especially vulnerable:

Connected via Gulf and Red Sea cable routes, dependent on global cloud infrastructure, and financial markets rely on real-time connectivity.

A disruption could mean:

• Slow internet

• Banking delays

• Stock market instability

This is not about whether Iran will cut cables.

It’s about the fact that:

Modern war has entered the digital bloodstream of the world.

Oil chokepoints once controlled economies.

Now, data chokepoints control the internet.

And unlike missiles, these attacks can be:

Silent. Deniable. Devastating.

No confirmed threat.

But a very real vulnerability.

Because in today’s world:

You don’t need to bomb a country to disrupt it.

Strategic Path Forward

You just need to disconnect it.