The Growing Threat of GPS Disruption to Commercial Shipping and Maritime Safety

The conflict in Iran has exposed a critical vulnerability in maritime navigation: GPS disruption. Modern ships rely heavily on satellite navigation, which can be manipulated or blocked, leading vessels to report false positions. This is especially dangerous in war zones, where ships may be misdirected into hazardous areas. Incidents like the grounding of the MSC Antonia in the Red Sea in May 2025 highlight the potential consequences, causing millions in damage and prolonged salvage operations. Cybersecurity threats at sea extend beyond GPS manipulation, including ransomware attacks and remote system intrusions, increasingly facilitated by satellite internet connectivity. While military vessels often have protocols and drills to handle cyber disruptions, commercial crews generally lack similar preparation. Mariners frequently report inadequate training, outdated navigation practices, and limited procedures for handling cyber incidents, which can leave them vulnerable when electronic systems behave unexpectedly. As shipping technology becomes more connected, the risk of interference grows, making it essential for the industry to develop better cyber resilience and integrate traditional navigation skills. The safety of maritime crews and the global supply chain depends on addressing these emerging threats.