Iran Threatening Fees on Critical Subsea Cables in the Strait of Hormuz

 Iran Plays Its Digital Card

As the Trump administration weighs military escalation to force Tehran into a nuclear deal, Iran has revealed a potentially devastating countermove that targets the backbone of the global digital economy: the undersea internet cables transiting the Strait of Hormuz.

In a development that underscores the widening scope of the confrontation, Iranian state media reported today that Tehran is considering imposing licensing fees and royalties on foreign operators running subsea cables through its territorial waters. The move, if implemented, would weaponize Iran's geographic position to hold hostage nearly 30% of global data traffic and 90% of digital communications between Asia and Europe.

According to reports from IRGC-affiliated news outlets Tasnim and Fars, Iranian officials are framing the issue as a matter of sovereignty. Any cable laid on the seabed without explicit authorization constitutes "occupation of Iranian soil underwater," the outlets claimed, and must therefore be subject to licensing and fees.

The proposed framework would require foreign operators to pay per-meter infrastructure fees and licensing royalties to route cables through Iranian territorial waters in the Strait of Hormuz. While the legal merits of such a claim remain contentious under international maritime law, the geopolitical leverage is undeniable.

Tehran is reportedly modeling its approach on Egypt's monetization of subsea cables transiting the Suez Canal corridor. Cairo currently earns between $250 million and $400 million annually from fees charged to cable operators using the strategic waterway. For Iran, facing crippling sanctions and a war economy, such revenue streams represent both a financial lifeline and a mechanism to assert control over a critical global chokepoint.

However, the implications extend far beyond revenue generation. The subsea cables in question—including the FALCON, GBI, and Gulf-TGN networks—are not merely internet conduits. They enable the bulk of financial transactions, cloud data services, and secure communications flowing between Europe and Asia via the Middle East.

The statistics are staggering:

• 17 submarine cables currently pass through the Strait of Hormuz.
• These cables carry nearly 30% of global data traffic.
• They handle 90% of all data flow between Asia and Europe.

Globally, 99% of intercontinental internet traffic is transmitted through undersea cable networks that support communications, finance, cloud systems, and military operations.

Unlike oil tankers, which can be rerouted (albeit at great cost), subsea cables are fixed infrastructure. They cannot be easily moved or replaced. Disruption or forced renegotiation of their status would send shockwaves through global financial markets, disrupt cloud computing services, and complicate military communications for nations dependent on these data corridors.

The timing of this disclosure is significant. As the Trump administration reportedly considers escalated military action to coerce Tehran into signing a nuclear deal, Iran is signaling that it possesses asymmetric tools that extend far beyond its missile arsenal or proxy networks.

Threatening the legal status of subsea cables achieves several strategic objectives for Tehran:

Economic Leverage: It creates a potential revenue stream while threatening to impose costs on the global economy, thereby increasing pressure on Western capitals to seek diplomatic off-ramps.

Deterrence: It signals that any military conflict would not be contained to conventional battlefields but would immediately impact the digital infrastructure underpinning the global economy.

Sovereignty Assertion: It reinforces Iran's narrative that it will not be bullied into surrendering its rights, extending that defiance from the nuclear realm to the digital and maritime domains.

Under the United Nations Convention on the Law of the Sea (UNCLOS), coastal states have sovereignty over their territorial waters (up to 12 nautical miles from the baseline), but foreign vessels and cables generally enjoy rights of innocent passage. However, the legal regime regarding subsea cables in territorial waters is complex and less tested than in exclusive economic zones (EEZs) or the high seas.

Iran's argument that unauthorized cables constitute "occupation" pushes the boundaries of international law. Yet, in the realm of geopolitical coercion, legal precision often matters less than the ability to disrupt. Even the threat of legal harassment, licensing delays, or selective enforcement could deter investment in cable maintenance or repairs, gradually degrading the resilience of these critical networks.

For policymakers in Washington, Brussels, and Asian capitals, Iran's move highlights a vulnerability that has long been underestimated. The global digital economy rests on physical infrastructure concentrated in a few geographic chokepoints. The Strait of Hormuz, already critical for energy security, is now being framed by Tehran as equally vital for data security.

If the Trump administration proceeds with military escalation, it must now calculate not only the risks of regional war and oil price shocks but also the potential for immediate disruption to the internet backbone connecting East and West. Iran has effectively signaled that in a conflict, no domain—nuclear, conventional, or digital—is off-limits.

The disclosure of this "digital card" suggests that Tehran is preparing for a long game of asymmetric pressure. Whether this serves as a deterrent to war or a prelude to further escalation may well depend on how seriously the international community takes the threat to the cables lying silently on the seabed of the Hormuz Strait.