Iran’s New Threat: Targeting Global Internet Cables Could Cripple Trump’s Economy

The stock market has largely dismissed geopolitical risks in 2026, with the S&P 500 reaching new heights and AI spending soaring. Investors have paid little attention to the escalating conflict involving Iran. However, Tehran might be developing a strategy to disrupt the global economy more effectively than through oil blockades.

Recent reports from media outlets linked to Iran's Revolutionary Guard suggest a potential move to control undersea internet cables passing through the Strait of Hormuz. Such an action could severely impact digital commerce, AI infrastructure, and trillions of dollars in financial transactions critical to President Trump's economic agenda.

Iran's Digital Arteries Under Threat

While the Strait of Hormuz is widely recognized for its role in global oil shipments (approximately 20% of the world's total, according to the U.S. Energy Information Administration), it also serves as a vital hub for the internet's infrastructure. TeleGeography estimates that about 17% of global internet traffic traverses subsea cables in this region. Furthermore, industry data indicates that 95% to 99% of internet traffic for Gulf states relies on these cable systems, underscoring the Strait's dual importance to the modern economy.

Iranian media reports suggest the possibility of Iran treating these cables as sovereign assets. Proposed measures include:

• Mandating permits for cable repairs.
• Levying transit or maintenance fees.
• Granting oversight authority to Iranian firms.
• Requiring technical participation in cable management.
• Potentially restricting emergency repair access during conflict periods.

Although Iran does not exclusively own these cables, which are typically managed by multinational consortia including telecom companies and hyperscale cloud providers, it could exert jurisdiction over nearby waters or employ military pressure to enforce its demands. This scenario introduces a significant new risk for investors.

Why Wall Street Should Monitor 17% of Internet Traffic

While 17% of internet traffic might not seem immediately catastrophic, given the internet's ability to reroute data, its economic implications are profound. The U.S. Treasury Department and SWIFT banking data reveal that over $10 trillion in daily financial transactions depend on subsea cable connectivity. Crucial data routes between the Middle East, Europe, and Asia often pass through systems linked to the Strait of Hormuz.

Major tech companies like Microsoft (NASDAQ:MSFT), Alphabet's Google (NASDAQ:GOOG)(NASDAQ:GOOGL), and Amazon (NASDAQ:AMZN) have collectively invested billions in AI infrastructure and cloud expansion across the Gulf states. These investments, crucial for linking Europe, Asia, and Africa through low-latency infrastructure, are heavily reliant on uninterrupted cable connectivity.

Recent commitments include:

• Microsoft: Multi-billion-dollar AI partnerships in the UAE and Gulf region.
• Alphabet: Expanding Google Cloud and AI operations in Qatar and Saudi Arabia.
• Amazon: Billions invested in AWS Middle East infrastructure.

Any Iranian interference in cable operations, repair approvals, or maintenance could create a new geopolitical choke point for cloud computing and AI deployment—a sector vital to the current bull market. Nvidia (NASDAQ:NVDA), for instance, has seen its market value surge by trillions since 2023, largely driven by assumptions of seamless global data movement. Disruptions could escalate operating costs, delay AI projects, and raise concerns about infrastructure security, impacting markets that rely on stable data flow.

Market participants typically react negatively to uncertainty surrounding critical infrastructure.

Trump's Likely Aggressive Response

President Trump has previously issued stern warnings to Iran regarding threats to commercial shipping lanes. An attempt to control subsea internet cables would likely be perceived by the White House as an act of economic warfare, potentially triggering strong retaliatory measures such as:

• Increased sanctions on Iranian telecom or maritime entities.
• U.S. naval escorts for repair vessels.
• Cyber retaliation against Iranian infrastructure.
• Secondary sanctions on companies complying with Iranian demands.
• Accelerated development of alternative cable routes bypassing the Strait of Hormuz.

Such escalations would carry significant economic repercussions. Elevated oil prices, already a concern due to regional tensions, could surge further. Disruptions to internet infrastructure could slow global trade, cloud computing, and financial activities, potentially creating a stagflationary environment of rising costs and weakening growth—a scenario the Federal Reserve aims to avoid.

This confluence of factors could put pressure on the very technology stocks that have fueled the current market rally.

Key Takeaway

Iran's reported interest in controlling subsea internet cables, while seemingly technical, carries profound economic implications. The Strait of Hormuz is evolving from an oil chokepoint into a digital one. Any attempt by Iran to impose fees, delay repairs, or involve state-linked firms in cable operations could jeopardize trillions in financial flows and jeopardize billions invested in AI infrastructure by major U.S. companies.

A forceful response from President Trump, which appears probable, could lead to higher oil prices, heightened geopolitical tensions, and increased volatility across tech and financial markets. The ultimate risk may not be Iran's ability to control the cables, but rather the market's realization of the digital backbone's vulnerability.