Marlink has reported a 50% increase in GNSS interference incidents during March 2026, driven by heightened geopolitical tensions in regions like the Middle East. The surge in jamming and spoofing poses critical risks to vessel navigation, safety systems, and satellite connectivity by manipulating GPS, Galileo, and GLONASS signals. To counter these threats, the managed service provider is deploying interference-resistant technology and real-time monitoring through its Possibility Portfolio to ensure operational continuity for global shipping fleets.
Oslo, Paris | March 25, 2026 – Marlink, a global leader in managed digital services, has issued a stark warning to the maritime industry following a 50% surge in detected Global Navigation Satellite System (GNSS) interference during March 2026. The spike in jamming and spoofing incidents is directly attributed to escalating geopolitical tensions, particularly in the Middle East, posing a severe threat to vessel safety and satellite connectivity.
The Growing Threat of Signal Manipulation
The interference targets essential GNSS services, including GPS, Galileo, GLONASS, and BeiDou. These signals are the backbone of modern maritime operations, used not only for navigation but also for satellite acquisition across all antenna types and distress alerting systems.
Because maritime satellite communication signals are inherently weak, they are highly susceptible to local manipulation:
- Jamming: The deliberate blocking of signals, leading to a total loss of positioning and connectivity.
- Spoofing: The broadcast of false signals that trick a ship’s receiver into displaying an incorrect location, potentially leading vessels into dangerous waters or unauthorized zones.
Marlink reports that these disruptions are no longer isolated events but have become a “persistent feature” along major global shipping lanes. When GNSS data is compromised, it can cause antenna systems to lose their lock on communication satellites, effectively “blinding” the vessel’s digital infrastructure.
Operational Resilience and Mitigation
In response to the crisis, Marlink has integrated advanced resilience measures into its Possibility Portfolio. These technical solutions are designed to maintain stable antenna pointing and accurate positioning even when external signals are degraded. Key technical deployments include:
- Interference-Resistant Reception: Utilizing hardened GNSS hardware.
- Signal Filtering: Advanced suppression of disruptive or “noisy” signals.
- Real-Time Monitoring: Identifying abnormal signal behavior the moment it occurs to alert crew members.
For vessels currently transiting high-risk zones, Marlink has issued immediate operational protocols:
- System Reboots: Restarting antenna control units if data appears inconsistent.
- Manual Verification: Cross-referencing GNSS data with traditional onboard systems and manually updating coordinates.
- Integrity Checks: Rigorous testing of data accuracy immediately upon exiting known interference zones.
- Terminal Power Cycling: Hard-resetting communication terminals to restore service availability.
Tore Morten Olsen, President Maritime at Marlink, stated “Maritime operators are facing an unprecedented level of GNSS interference in certain regions today. When positioning is compromised, it can quickly impact both connectivity and safety systems onboard. Our role is to support customers with the insight, guidance and resilient solutions they need to maintain safe and efficient operations in these environments.”
Corporate Profile: Marlink
Marlink is a global managed service provider specializing in business-critical IT and connectivity solutions for the world’s most challenging environments. Serving sectors including merchant shipping, offshore energy, humanitarian aid, and cruise operations, the company operates in more than 30 countries with annual revenues exceeding $800 million.
The company’s Possibility Platform provides an end-to-end suite of managed solutions, encompassing:
- Connectivity & Network Management: Hybrid network solutions across satellite and terrestrial bands.
- Cyber Security: Protecting remote assets from digital threats.
- Cloud & IT/IoT: Enabling smart vessel operations and remote monitoring.
Marlink’s global network operations center (NOC) provides continuous monitoring to ensure that even in geopolitically sensitive areas, fleet operators maintain the visibility and control necessary to work safely and sustainably.
Source: Marlink