Norway conducts Arctic GPS vulnerability tests

In the remote village of Bleik on the island of Andøya, Norway, experts gather annually for Jammertest, an event designed to simulate cyberattacks on satellite navigation signals. Engineers, physicists, and technology specialists participate in this ethical hacking competition to identify vulnerabilities in systems like GPS.

Beyond simple location services, GPS provides highly precise timing signals essential for electrical grids, telecommunications, financial markets, and transportation infrastructure. Because satellite signals are relatively weak, they are susceptible to interference from more powerful transmissions.

The tests focus on two primary methods of interference: jamming, which saturates signals to make services unavailable, and spoofing, which sends false location and time data to receivers. In 2024 experiments, manipulated signals caused a rescue helicopter and a small aircraft to record trajectories different from their actual paths.