Introducing PntGuard™ - the ultimate safeguard against GNSS spoofing and jamming at sea

LYSAKER, Norway and MANASSAS, Va., Oct. 30, 2025 /PRNewswire/ -- Tschudi Shipping Company, NAL Research, and SGM Technology AS today commercially launched PntGuard™, a maritime-security solution that provides pinpoint situational awareness. It supports navigational integrity at a time when GNSS signals can no longer be taken for granted. A standalone navigational aid independent of all other bridge systems, PntGuard delivers instant alerts the moment a vessel's position is falsified, providing true position data when other bridge systems are compromised.

ELECTRONIC WARFARE: AN ESCALATING MENACE

Malicious disruption of GNSS/GPS signals is increasing at an alarming pace. Attacks can originate from land-based systems, hostile or "dark-fleet" vessels, or even occur opportunistically in congested sea lanes – often without vessel crews ever realising their position has been manipulated.

Such interference is now recognised as a strategic threat with the potential to cause serious physical, commercial, and legal damage. By corrupting GNSS/GPS signals using a proliferation of low-cost equipment, attackers can place a ship miles away from its actual location, fabricate AIS tracks, and trigger cascading errors across bridge systems, jeopardising crew safety. This amplifies the risk of various critical scenarios including:

• Collisions and groundings (especially in low visibility, at night, and in dense traffic zones with risk to life, assets, and the environment)
• Unintended or manipulated entry into restricted waters
• Claims of sanctions evasion / calling at ports in sanctioned states
• Port delays / disruptions to cargo logistics including deviations causing delays, increased fuel consumption, and emissions.
• Charter disputes and insurance challenges when a vessel appears to have breached compliance boundaries

Concern is being voiced at the highest levels in shipping, while all major marine insurers are recommending urgent action to safeguard operational resilience.

PLUG-AND-PLAY SIMPLICITY

Leveraging leading Assured Positioning, Navigation, and Timing (APNT) technology, PntGuard is the most resilient solution on the market. Most solutions available today can only warn that GNSS/GPS is disrupted, but do not provide an alternative authenticated, trusted position. Enabled by the Iridium® low-Earth orbit (LEO) satellite network, PntGuard receives a secured PNT signal that is about 1,000 times more powerful than GNSS/GPS and is resilient to jamming and spoofing of those systems. The solution complements a vessel's navigation feed with accurate situational awareness and immediately alerts the crew to manipulation or interruption.

Easy to install and use, PntGuard comprises two compact components – an above-deck unit (receiver) that connects to the Iridium PNT service and a below-deck unit (bridge display) that shows both the falsified GPS track and the vessel's true position on a nautical chart in real time.

SAFETY, COMPLIANCE, AND PROOF ON DEMAND

Most crews would never know they're being spoofed until it's too late. PntGuard provides a single point of truth so crews can react rapidly and continue to navigate with confidence.

Shore offices can also receive an accurate record of a vessel's true position at any time – proof that can be shared with charterers or insurers to defend against claims based on false data –safeguarding both revenue and reputation.

PntGuard is built on the same technology that enables APNT solutions for many aspects of critical infrastructure, including telecommunications networks, data centers, and utilities. Its performance for maritime use has been thoroughly proven through multi-month sea trials with leading international shipowners through a proof-of-concept pilot program with Norway's DNK, one of the world's leading maritime war risk insurers, and through independent evaluations for two consecutive years at Jammertest in Andøya, Norway.

AFFORDABLE AND FLEXIBLE

PntGuard is available today with deployments scaled to fleet size – offering immediate protection against a threat both invisible and growing. Visit Pnt-Guard.com to learn more.  

About the PntGuard™ partnership PntGuard has been developed through a collaboration between cross-industry partners Tschudi Shipping Company, NAL Research Corporation, and SGM Technology, combining expertise from resilient satellite services, maritime technology, and vessel operations.

About the Companies

Tschudi Shipping Company  is a fifth-generation, Norwegian family-owned shipping and logistics group with more than 100 years of history of owning and managing ships. Focusing on client value through tailored solutions, strong partnerships, digital innovation, Tschudi's core values are commitment, respect, and proactivity.

NAL Research Corporation , based in Virginia, USA, is a leader in Assured Positioning, Navigation, and Timing (APNT) technologies, providing secure, resilient communications and tracking solutions for defence, government, and enterprise customers operating in GPS-denied environments.

SGM Technology,  headquartered in Oslo, Norway, develops advanced satellite-based digital and compliance systems for the maritime and fisheries sectors, delivering innovative, field-proven solutions that enhance operational safety, transparency, and efficiency at sea.

Media inquiries:

Christina Dupré Roos
Partner/Press Relations Manager
Blue-C, Oslo
Email: christina@blue-c.no 
Tel. +47 93 63 44 49

NAL Marketing
Manassas, Va., USA
Email: media@nalresearch.com

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