Marlink, a global leader in secure managed services for business-critical digital solutions, reports a more than 50% increase in detected and reported Global Navigation Satellite System (GNSS) interference incidents across its customer base during March, highlighting a growing operational risk for vessels operating in sensitive regions.

The rise in disruption is closely linked to evolving geopolitical conditions, particularly in areas such as the Middle East, where electronic interference including jamming and spoofing is increasingly affecting maritime operations.

Collectively known as GNSS, services including GPS, Galileo, GLONASS and BeiDou, underpin core vessel operations. These signals support not only effective navigation but also satellite acquisition across all maritime antenna types, including those used in distress alerting systems. Low signal strength makes maritime satcom inherently vulnerable to local interference through jamming and spoofing, with the potential to disrupt safe and effective operations due to impacting service quality and availability.

Recent observations show that interference events are no longer isolated. Instead, they are becoming a persistent feature along key maritime routes, requiring operators to adopt a more resilient and informed approach to navigation and connectivity. Marlink…