As Iran Conflict Escalates, Satellite Jamming and Spoofing Disrupt Shipping, Aviation, and Global Trade.
When ships think they’re at airports and planes “drift” off course, the battlefield has gone digital.
Within hours of the first U.S.-Israeli strikes on Iran, a different kind of weapon began reshaping the conflict — not missiles, but signals.
Commercial vessels navigating Gulf waters suddenly appeared to be located at airports, nuclear facilities or deep inland. The culprit was widespread jamming and spoofing of global navigation satellite systems, the digital backbone that keeps ships, planes and drones on course.
According to maritime intelligence firm Windward, more than 1,100 commercial vessels in UAE, Qatari, Omani and Iranian waters experienced navigation disruptions in the first 24 hours after hostilities began. Traffic through the Strait of Hormuz — the narrow artery that carries roughly 20% of the world’s oil and gas — slowed sharply. Some tankers reversed course. Others went dark, switching off their Automatic Identification System (AIS), the transponder designed to prevent collisions.
“You don’t know where ships are,” said Michelle Wiese Bockmann, a senior maritime intelligence analyst at Windward. “The whole point of AIS is collision avoidance.”
The tactic itself is simple. Militaries broadcast high-powered radio signals on the same frequencies used by satellite navigation tools. Jamming blocks the signal; spoofing manipulates it, feeding false coordinates to receivers. The result can be vessels moving in strange geometric “crop circles” on tracking maps or appearing thousands of miles from their actual position.
Data from Lloyd’s List Intelligence recorded 1,735 GPS interference events affecting 655 vessels in just a few days. Daily incidents have nearly doubled since the conflict began.
The practice is not new. Satellite interference became common during Russia’s 2022 invasion of Ukraine, where drone warfare surged. But experts say the problem has now become “endemic” in conflict-adjacent regions such as the Baltic, Black Sea and Middle East.
Ramsey Faragher, director of the Royal Institute of Navigation, describes jamming as an “easy shield” against GPS-guided drones. The complication is that the electronic fog affects everything else in the area — commercial ships, civilian aircraft, even rescue equipment.
The aviation sector is already feeling the strain. The International Air Transport Association reports a 220% rise in global GPS signal loss events affecting aircraft between 2021 and 2024. Pilots have described cockpit displays “drifting away from reality,” with map shifts and false altitude warnings increasing workload during critical flight phases.
The vulnerability stems from physics. GPS signals weaken dramatically as they travel more than 20,000 kilometers from orbit, making them relatively easy to overpower. While Europe’s Galileo system now offers authentication features, most civilian satellite signals remain largely unprotected.
The stakes extend beyond inconvenience. Modern ships rely heavily on automation. Younger mariners often have less experience navigating by radar, visual watchkeeping or celestial methods. Interference can also trigger compliance alarms if a vessel’s spoofed location appears inside sanctioned territory.
The most alarming scenario is humanitarian. If a vessel were struck and crew forced to abandon ship, emergency beacons dependent on satellite positioning could transmit false coordinates, delaying rescue.
Satellite navigation transformed global trade by making positioning instantaneous and precise. But as the Gulf conflict demonstrates, that era of assumed reliability is ending.
Electronic warfare has moved from the margins to the mainstream. And in this war, the most powerful weapon may be the one no one can see.
