Recent data from Marlink reveals a significant 50% increase in satellite jamming and spoofing incidents impacting global shipping as of March 2026. This rise is attributed to escalating geopolitical tensions, particularly in the Middle East, where such interference poses a continuous threat to vital maritime routes. These disruptions compromise essential GNSS services, including GPS, Galileo, and GLONASS, allowing attackers to block signals or manipulate positioning data, which can jeopardize vessel navigation and safety systems.
As onboard digital infrastructure becomes increasingly vulnerable to these interferences, maritime operators face heightened operational and safety risks. In response, Marlink emphasizes the need for interference-resistant technologies and real-time monitoring to ensure continuity across affected fleets. The GNSS services, which are crucial for navigation and satellite acquisition, are especially susceptible to local disruptions due to low signal strength, potentially impacting service quality and operational safety.
Tore Morten Olsen, president of maritime at Marlink, highlighted the unprecedented level of GNSS interference in certain regions, stressing the importance of maintaining connectivity and safety. Marlink is actively monitoring these developments and providing operational guidance to customers. Practical steps include restarting antenna systems upon detecting incorrect GNSS data and verifying vessel positions against onboard systems.
To enhance resilience, Marlink is implementing measures to strengthen the integrity of positioning, navigation, and timing (PNT) used in satellite communications. This includes interference-resistant GNSS reception and real-time identification of abnormal signal behavior. By integrating improved signal reception with onboard mitigation techniques, Marlink aims to maintain stable antenna pointing and accurate positioning, ensuring service continuity even amid GNSS signal degradation.
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