Maritime Sightings Gone Dark: Navigating the Growing AIS Threat in the Persian Gulf

The Persian Gulf—especially the narrow Strait of Hormuz—is facing an alarming maritime security threat. Ships sailing through this vital global trade route are increasingly encountering interference with their navigation systems. Spoofing of AIS (Automatic Identification System) data and GPS jamming have become common, putting crew safety, global oil supply, and international trade at serious risk.

What’s Happening Out at Sea?

Since mid-2025, incidents of AIS spoofing and GPS jamming have sharply increased. Spoofing tricks a vessel’s system into showing a false location or even a fake identity. Jamming, on the other hand, blocks GPS signals altogether, leaving ships blind in crowded waters.

Reports suggest that nearly 1,000 ships per day are affected in the Gulf. Tankers have appeared on tracking systems as if they were stranded on land or suddenly relocated thousands of kilometers away. In one high-profile case, a massive oil carrier was falsely reported as being onshore in Iran just before it collided with another tanker in the Strait of Hormuz.

Why It Matters

This is not just a technical glitch. The Gulf is home to one of the world’s busiest maritime corridors. Around one-quarter of global oil shipments pass through the Strait of Hormuz. Any disruption here has immediate consequences for global energy markets and international trade.

The risks extend beyond economics. False signals increase the chance of collisions, strandings, and accidents. Shipping companies also face compliance headaches. Spoofed signals may falsely suggest that a ship entered sanctioned ports, creating legal and financial complications for operators who have actually done nothing wrong.

The Geopolitical Undercurrent

The rise in electronic interference cannot be separated from politics. Rising tensions between Iran, Israel, the U.S., and Gulf nations make the waters more vulnerable to electronic warfare. Experts believe some of the jamming may be deliberate, designed to obscure military or commercial movements in contested waters.

This mirrors patterns seen in the Black Sea and the Taiwan Strait, where electronic disruption has also become a strategic tool. The Persian Gulf is now caught in this same dangerous trend.

How the Industry Is Responding

The industry and regulators are racing to adapt.

• Official warnings: The U.S. Maritime Administration and other authorities have issued advisories highlighting “foreign adversarial technological influence” and urging caution.

• Safety protocols: Maritime insurers and regulators are advising ships to conduct detailed voyage risk assessments, verify positions often, and prepare contingency plans.

• Manual navigation: With digital systems compromised, crews are returning to old-school methods—radars, compasses, charts, and even visual sightings.

• AI navigation tools: Some companies are now turning to advanced situational-awareness systems powered by artificial intelligence to provide backup when GPS and AIS fail.

• Incident reporting: International monitoring centers are encouraging vessels to report jamming and spoofing quickly, providing data on time, location, and nature of interference.