Electronic warfare puts commercial GPS users on notice

Localized jamming and spoofing of global navigation satellite systems (GNSS) continues to be a hallmark of conflicts across the globe, with the digital signal attacks impacting air travel and transport and maritime shipping. And now, the denial-of-service issue seems to be affecting everyday organizations in other verticals, too.

The level of interference coming from Russia is particularly significant. In early October, after documenting more than 122,000 flights affected by GNSS interference in the first four months of 2025 — and an incident involving European Commission President Ursula von der Leyen’s airplane on Sept. 1 — delegates attending the latest United Nation’s civil aviation agency assembly voted to condemn Russia’s widespread interference and spoofing of GNSS signals in the region. The assembly also condemned North Korea for similar activity.

Overall, GNSS interference has increased from around 700 daily incidents in 2024 to more than 1,000 daily incidents this year. The number of incidents is steadily increasing, says Todd Humphreys, a professor in the Department of Aerospace Engineering and Engineering Mechanics at the University of Texas and the director of the Radionavigation Laboratory.

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