As boats become more technologically advanced and interconnected, the risk of cyber threats targeting maritime systems has grown significantly. The NMEA 2000 network, a backbone of modern marine electronics, is not immune to these risks. Recent hacks have exposed vulnerabilities in CAN-based systems, raising concerns about the safety and security of onboard data.
In response, the NMEA Organisation has established a Cyber Security Working Group to address these challenges. One of the key outcomes of this initiative is NET Protect, the first NMEA 2000 Intrusion Detection device designed to safeguard marine networks. In this article, we’ll explore the risks posed by cyber threats and how Digital Yacht’s NET Protect provides a robust solution.
The Growing Risk of NMEA 2000 Cyber Attacks
Why Is NMEA 2000 Vulnerable?
NMEA 2000 networks, based on the CAN bus protocol, were originally designed for reliability and ease of use, not cybersecurity. As a result, they lack built-in encryption or authentication, making them susceptible to:
- Unauthorised access: Hackers can intercept or manipulate data transmitted across the network.
- Data spoofing: Malicious actors can inject false information, such as fake GPS coordinates or engine data.
- Denial-of-Service (DoS) attacks: Flooding the network with bogus messages can disrupt critical systems.
What type of threats are there?
Recent incidents have shown that even maritime systems are not safe from cyber intrusions. Attackers could:
- Disable navigation systems, putting vessels at risk.
- Tamper with engine data, leading to mechanical failures.
- Steal sensitive information, such as route plans or vessel tracking data.
Without proper protection, connected boats are exposed to these dangers, especially as more systems integrate with cloud-based services, and now a lot of boats are connected to internet (especially since Starlink).
NET Protect is your boat’s digital bodyguard
NET Protect is the world’s first cybersecurity device built just for NMEA 2000 networks.
Think of it like a 24/7 security guard for your boat’s electronics. It watches for hackers, alerts you to problems, and even helps installers set up networks safely. Here is a little insight into how this tool works.
During installation it tests everything
Before you even leave the dock, NET Protect runs 10+ checks to make sure your network is safe, including:
- Finding uncertified devices (could be unreliable or malicious)
- Detecting rogue devices (is that a hacker’s gadget plugged into your network?)
- Fixing duplicate data conflicts (so your instruments show the right info)
- Checking Wi-Fi/4G gateways (common hacker entry points)
Once everything looks good, you can take a “CANshot”—a snapshot of your healthy network .
Garmin OneHelm Connectivity
Digital Yacht have now added Garmin OneHelm connectivity so Garmin MFD users can constantly monitor their onboard NMEA 2000 network and receive alerts of any inconsistencies.
It also has valuable tools for the installer for configuration and diagnostics, including the ability to change instances, switch CAN addresses and enter Configuration Information.
Do you need the NET Protect?
Honestly? If your boat has any critical electronics on NMEA 2000, it’s worth considering—especially if you have a modern, connected boat (the more gadgets, the bigger the risk). Also if you charter your boat or run a fleet, having NET Protect monitoring your assets 24/7, really will bring you peace of mind.
Protect your boat today
Cyber threats are no longer just a concern for IT systems—they pose a real risk to marine electronics. With NET Protect, boat owners can safeguard their NMEA 2000 networks against intrusions.
Learn more abut how the NET Protect can keep you cyber secure by clicking the find out more button below.
