Maritime GNSS Interference Working Group - Members Wanted: Royal Inst. of Navigation

Maritime GNSS Interference Working Group – Members Wanted: Royal Inst. of Navigation

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August 9, 2025

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Written by Editor

Image: Spoofed AIS tracks courtesy of Skytruth

What’s new: A working group examining effects, mitigations and solutions of GNSS interference in maritime.

Why it’s important: GNSS interference in maritime can have serious consequences. We have already seen it:

Contribute to groundings and collisions,
Result in vessels being seized for violating territorial waters, and
Support smuggling, illegal fishing, sanction avoidance, and any number of other malicious activities.

What else to know: This effort is intended to do for maritime what the OPSGROUP report did for aviation last summer.

📢 Calling all #marine operators and navigators!

The Royal Institute of Navigation is launching a working group to investigate and report on the effects, mitigations and solutions to hashtagGNSS hashtagjamming and hashtagspoofing in the maritime sector. We need your help in gathering the information we need to conduct this study.

Interference have been pervasive for years now in areas such as the Baltic Sea and the Black Sea. In the Strait of Hormuz alone, almost 1000 ships per day experience GNSS interference, impacting crew safety and the security of their cargo. Collisions and groundings are a very real threat, with the Frontier Eagle and MSC Antonia accidents being the most recent examples.

For those of you familiar with the OPSGROUP report into GPS spoofing in the aviation sector (https://lnkd.in/epRe_aUc) we will be producing a similar piece of work, but focused on the Maritime domain.

If you want to join the Working Group, and help to compile and write the report, please join our discord channel here: https://lnkd.in/e_mCRNM9We will hold a kick off meeting over Zoom next week.

Please share this widely in the Maritime network – the more mariners we can reach with direct experience of the issues caused by GNSS interference, the better.

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What Can YOU Do? How Can YOU Help?

PNT is the quiet backbone of everything but too many leaders still don't see the risk.

But you do. You understand the systems, the dependencies, the failure chains. That insight is rare — and it's exactly what your country needs right now. Contact your government leaders and industry decision-makers and tell them resilient PNT isn't a feature — it's the foundation everything else depends on.

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