Okay, imagine a big, beautiful ship, sailing the vast, open ocean. For centuries, these ships have been the lifeblood of global trade, carrying everything from your morning coffee to the car you drive. But today, these steel giants are more than just metal and cargo; they’re also intricate networks of computers, satellites, and digital systems. And just like your laptop or phone, they can be vulnerable.
The Illusion of Disappearing: Why Turning Off AIS Isn’t Enough
Picture this: you’re driving your car, and you want to go unnoticed. Maybe you’re on a secret mission or just don’t want anyone to know where you are. So, you turn off your car’s GPS. You feel pretty smug, right? Like you’ve vanished from the map. Now, imagine a ship manager in a dangerous part of the world – let’s say, the Strait of Hormuz, a narrow waterway teeming with ships and, sometimes, trouble. They’re worried about pirates or other bad actors, so they tell their captains to switch off the ship’s Automatic Identification System (AIS). AIS is like a digital broadcasting system that tells other ships and land stations where a vessel is, what it’s doing, and where it’s headed. Turning it off feels like pulling a magic cloak over the ship, making it disappear from everyone’s radar.
This is where Cydome, a company specializing in keeping ships safe in the digital world, steps in with a sobering message: that “magic cloak” is full of holes. In fact, turning off AIS might be making things worse. They’ve seen a sharp increase in ships going “dark” in these high-risk areas, leading to what they call “zombie ships” – vessels that seem to vanish from traditional tracking systems. But here’s the crucial part: they haven’t actually vanished. These ships are still out there, and their locations, in many cases, are still visible to those with the right tools. It’s like turning off your car’s GPS, but forgetting you left your phone’s location services on, and it’s broadcasting your every move. This highlights a growing problem: the old ways of thinking about maritime security just aren’t keeping up with the new, digital reality of ships.
The Hidden Trail: Your Satellite Dish is Talking
Think of your ship as a giant floating office building, constantly connected to the internet. Just like your office building has Wi-Fi, ships have something called VSAT (Very Small Aperture Terminal) satellite communication. This is how the crew can call home, the captain can get weather updates, and the company can send important operational data. This VSAT connection is almost always on, humming away in the background, keeping the ship linked to the rest of the world.
Cydome’s experts found that even when AIS is turned off, this VSAT connection is still broadcasting. And here’s the really scary part: in many cases, especially around areas like the Strait of Hormuz, the “back doors” to these VSAT systems are wide open. Imagine leaving your front door unlocked, with all your valuables inside. These systems often use default passwords or have easily guessable settings, making it incredibly simple for someone with a bit of know-how to find them online. Cydome CEO Nir Ayalon explains it perfectly: “The crew believes they are hidden, while threat actors can still track and target the ship via its VSAT signature.” It’s a terrifying thought: you think you’re safe, but behind the scenes, your digital footprints are creating a clear map for anyone who wants to find you. This isn’t a glitch; it’s how these systems are designed. They need to be constantly connected for communication, and many operators simply aren’t aware of the risks involved.
More Than Just Tracking: The Threat to the Ship Itself
Losing your location is one thing, but what if someone could actually take control of your ship? Cydome’s research reveals an even darker side to these exposed VSAT systems. They’re not just a tracking risk; they can be a wide-open gateway for unauthorized access to the ship’s most critical systems. Think about it: the VSAT hardware is often connected to the ship’s “brain” – its Operational Technology (OT). This includes the systems that control the navigation, the engines that push the ship through the water, and even the power management.
If an attacker gains access through the VSAT, it’s like they’ve found a secret tunnel right into the ship’s command center. If these systems aren’t properly separated and protected, a cyberattack could allow someone to literally steer the ship off course, shut down its engines, or even mess with its power supply. This isn’t just about losing cargo or facing a data breach anymore; it’s about the lives of the crew, the integrity of the vessel itself, and the potential for massive economic and environmental disruption. Cydome gives a chilling example from 2025, where a group of hackers called Lab Dookhtegan managed to disrupt the communications of over a hundred tankers linked to Iran, using this exact vulnerability. It was a clear demonstration of how a seemingly small digital weakness can have huge real-world consequences.
From “Invisible” to “Secure”: A New Approach to Maritime Safety
So, what’s a ship manager to do? Cydome’s message is clear: stopping your AIS isn’t the solution. It’s a band-aid on a gaping wound. Instead of trying to become “invisible,” ship operators need to focus on becoming truly “secure.” Alon Ayalon, Cydome’s Vice President for R&D, puts it succinctly: “Operators need to focus on risk exposure rather than visibility. The priority is to reduce the attack surface, not just the visibility of the vessel.”
This means taking a much more comprehensive approach to cybersecurity, recognizing that every connected system on board is a potential entry point for attackers. It’s like fortifying your home: you wouldn’t just lock the front door; you’d check all your windows, make sure your back gate is secure, and perhaps even install an alarm system. For ships, this translates to several key actions:
First, auditing satellite communications for external exposure. This means actively checking to see if your VSAT systems are accidentally broadcasting their vulnerabilities to the internet. Second, enforcing strong authentication on all management interfaces. No more default passwords or easy-to-guess logins. Every access point should require robust verification. Third, patching vulnerabilities. Just like you update your computer’s software to fix bugs and security flaws, ship systems need regular updates. Finally, eliminating insecure configurations. This means making sure all systems are set up with security in mind from the beginning, rather than leaving default settings that can be easily exploited.
In essence, the maritime world needs to shift its mindset. The days of simply turning off a transponder and hoping for the best are over. Ships are now complex digital ecosystems, and their safety depends not just on the strength of their hulls, but on the strength of their cybersecurity defenses. By understanding these digital realities and proactively securing their entire “attack surface,” ship operators can move beyond the false sense of security and truly protect their vessels, their crews, and their precious cargo from the ever-evolving threats of the digital age. It’s a wake-up call, but one that offers a clearer, safer path forward for the ships that connect our world.