Your GPS is lying to you. Not occasionally. Not in rare edge cases. Systematically, deliberately, and with increasing frequency across some of the busiest airspace on the planet. IATA’s 2025 safety data reveals that GPS spoofing incidents — where aircraft receive false position data from ground-based transmitters — nearly tripled between 2023 and 2025. Jamming, which blocks GPS signals entirely, rose 67% over the same period.

The numbers are alarming. But the real danger is what spoofing does to a cockpit. When GPS is jammed, pilots know something is wrong — the navigation display goes blank or flags an error. When GPS is spoofed, the aircraft thinks it’s somewhere it isn’t. The display looks perfectly normal. The position is simply wrong. Pilots have reported their aircraft showing positions over the sea when they were over land, inside restricted airspace when they were outside it, and on approach to the wrong runway.

This isn’t theoretical. It’s happening now, on commercial flights carrying hundreds of passengers, every single day.

Where It’s Happening

The worst-affected zone stretches across the Eastern Mediterranean — from Cyprus and Lebanon through Iraq and into the Persian Gulf. Flights crossing this region routinely experience GPS anomalies lasting 30 minutes or more. Pilots on approach to Beirut, Baghdad, and Erbil have reported their aircraft showing positions hundreds of kilometres from reality. The source: electronic warfare systems operated by state actors in the region’s overlapping conflicts.

The Baltic and Scandinavian regions are the second major hotspot. Russian GPS jamming from Kaliningrad has affected flights across Poland, Finland, Sweden, and the Baltic states. Commercial aircraft on routine European routes suddenly find their navigation degraded or unreliable. Airlines have rerouted flights, adjusted approach procedures, and in some cases diverted aircraft rather than attempt GPS-denied approaches.

The Black Sea region, contested since Russia’s invasion of Ukraine, is the third zone. Military-grade jamming and spoofing systems designed to protect Russian forces have spilled over into civilian airspace, affecting everything from Turkish Airlines flights to cargo operations transiting the region.

Why It’s Getting Worse

GPS signals arrive at aircraft from satellites 20,000 kilometres away. By the time they reach the receiver, they’re vanishingly weak — far weaker than the signal from a mobile phone. Overpowering them with a ground-based jammer requires trivially little power. A device the size of a cigarette pack can deny GPS across several kilometres. A truck-mounted military system can blank out satellite navigation across an entire region.

Spoofing is more sophisticated but not much more difficult. A transmitter broadcasts signals that mimic real GPS satellites but carry false position and timing data. Modern spoofing systems can target individual aircraft, gradually shifting their apparent position to draw them off course without triggering any alert. The aircraft’s navigation system has no built-in way to tell a real GPS signal from a fake one.

The 193% increase in spoofing isn’t just more of the same — it reflects a qualitative shift. Early spoofing was crude, producing obvious position jumps that pilots noticed immediately. Current spoofing is subtle, with gradual drift that can go undetected for minutes. The technology is proliferating. Equipment that was once exclusively military is now commercially available. And as conflicts in Ukraine, the Middle East, and elsewhere intensify, the electronic battlefield is bleeding into civilian airspace with dangerous consequences.

What Pilots and Airlines Are Doing

Airlines are rewriting their procedures. Crews flying through high-risk zones now cross-check GPS positions against inertial navigation systems, ground-based navaids, and radar vectors from air traffic control. Some airlines have mandated that pilots verify their position using at least two independent sources on every approach in affected regions. Training programmes now include GPS denial scenarios that were unheard of five years ago.

The longer-term answer is technology. Next-generation receivers that can detect and reject spoofed signals are in development. The European Union’s Galileo system includes an authentication feature — a digital signature that proves a signal is genuine — but it’s not yet widely implemented in aviation receivers. And there’s a growing push to revitalise ground-based navigation infrastructure that was being decommissioned as GPS seemed to make it obsolete.

The irony is sharp. Aviation spent decades moving toward satellite-dependent navigation because it was more accurate, more reliable, and cheaper than ground-based systems. Now, a $200 jammer can knock out the entire foundation, and a $2,000 spoofer can make it worse than useless. The 193% spike in spoofing is a wake-up call. The skies that pilots navigate by satellite are no longer as trustworthy as they look on the glass cockpit display.

Sources: IATA 2025 Annual Safety Report, Eurocontrol, OPSGROUP, European Union Aviation Safety Agency (EASA)