Maritime Cyber Threats and AIS Assisted Collisions

Why It Matters

Persistent jamming threatens global shipping safety and raises insurers’ exposure, making resilient navigation technology a critical risk‑mitigation priority.

Key Takeaways

• Military jamming of GPS is routine, not limited to wartime
• Malware from personal devices can disable ship navigation systems instantly
• DNK’s Iridium‑based counter‑jamming system costs ~$750 per licence
• Premium rebates encourage insurers’ customers to adopt anti‑jamming tech
• High‑altitude jamming in strategic chokepoints remains hard to defeat

Pulse Analysis

The maritime sector’s reliance on satellite‑based navigation has turned cyber‑threats into a safety issue as much as an insurance one. Jamming and spoofing, now commonplace tactics of U.S. and Russian forces, corrupt GPS timing signals that vessels use for positioning, course plotting, and collision avoidance. When electronic chart display and information systems (ECDIS) lose signal, crews revert to visual lookouts, increasing human error risk. Even a seemingly innocuous act—plugging a personal phone into a ship’s network—can unleash malware that disables critical navigation tools, underscoring the thin line between routine operations and catastrophic loss.

In response, Norwegian insurer DNK introduced a counter‑jamming service built on Iridium’s Assured Positioning, Navigation and Timing (A‑PNT) network. The system leverages Iridium’s 66‑satellite constellation operating in the L6 band to deliver clean, jam‑resistant signals. Testing on Norway’s Andøya Island, originally for autonomous vehicle GPS denial, proved the technology could override low‑cost jammers that cost as little as $70. Pricing is modest: a decoding licence runs about $750, hardware between $7,000 and $9,000, and monthly transmission fees stay under $60, making the solution financially viable for commercial fleets.

For the broader industry, the rollout signals a shift toward proactive cyber‑resilience in navigation. Insurers are already offering premium rebates to vessels that adopt the DNK service, aligning financial incentives with risk reduction. Yet skeptics note that high‑altitude, state‑level jamming—particularly over the Strait of Hormuz—may still outpace commercial counter‑measures. Continued miniaturisation of A‑PNT modules, slated for release later this year, promises greater accuracy at lower cost, potentially narrowing the gap. As regulators and classification societies tighten cyber‑security standards, firms that integrate robust anti‑jamming tech will likely enjoy lower insurance costs and enhanced operational safety.