The Marine Cybersecurity Myth: Why Rigid Compliance Fails at Sea

Written by Pete Rucinski – Managing Director, Assure Technical.

When we discuss cybersecurity within the commercial marine and workboat sectors, we often default to a vocabulary of absolutes. We talk about becoming secure or achieving compliance as if we are describing a fixed destination or a problem with a single, permanent solution. Yet, anyone who has spent time managing vessels or shore-side operations understands that maritime reality rarely accommodates such black-and-white thinking.

In practice, our industry operates in a fascinating grey area. We see decades-old mechanical engineering working alongside highly sophisticated digital systems. For instance, a workboat might feature a perfectly reliable legacy engine alongside a modern satellite uplink installed because charterers require real-time emissions data. This blending of the physical and the digital means that the boundary between a vessel’s internal operations and the wider world is becoming increasingly fluid.

The Concrete Realities of the Modern Threat

To understand why this matters, we need to look beyond abstract warnings and examine the documented data now emerging across our sector. In fact, the threat landscape is shifting with remarkable speed, moving well past simple shore-side IT disruptions and directly impacting seaworthiness.

Consider these recent operational insights:

• Escalating Incident Rates: Recent sector analysis revealed that maritime cyberattacks doubled globally over the past year, driven by a surge in malware and automated exploitation.
• A Growing Attack Surface: PwC’s maritime threat intelligence underscores this trajectory, tracking a 150% increase in reported maritime cyber incidents between 2022 and 2025.
• The Vulnerability of Interconnected Systems: Financially motivated ransomware now accounts for roughly one third of these incidents. Rather than just locking up office laptops, these attacks increasingly target Planned Maintenance Systems (PMS) or exploit flat onboard network architectures – allowing malware to cross from a crew entertainment network directly into critical propulsion, ballast, or navigation systems.
• Systemic Supply Chain Risks: We are also witnessing highly sophisticated ecosystem vulnerabilities. The recent ransomware attack on a major maritime radar and ECDIS manufacturer demonstrated how an exploit on an external OEM supplier can instantly interrupt vital fleet software updates and parts shipments across multiple operators.

These points suggest that cybersecurity is rapidly moving away from being treated as a secondary IT safeguard. Instead, it is increasingly viewed as a core component of a vessel’s broader operational integrity and commercial viability.

The Friction Between High-Level Policy and the Deck

Faced with these figures, regulators have naturally responded. The International Maritime Organisation (IMO) took the unusual step of rapidly updating its Guidelines on Maritime Cyber Risk Management (MSC-FAL.1/Circ.3/Rev.3), reflecting just how fast the seascape is changing. Domestically, the UK Department for Transport’s Cyber Security Code of Practice for Ships and the upcoming Cyber Security and Resilience Bill point toward a landscape of closer, more structured oversight for critical supply chains.

The real challenge lies in acknowledging a persistent friction here: international frameworks often leave high-level policies open to interpretation. Without a clear, standardised template, two operators can read the same mandate and implement wildly inconsistent controls. One might over-engineer a costly, restrictive setup that burdens the crew, while another might settle for a superficial paper exercise.

We must also account for the cognitive load on seafarers. A master navigating a busy shipping lane or managing a complex marine project cannot also act as a network administrator. If a security protocol makes a crew’s job significantly harder, the practical realities of life at sea mean that overly cumbersome protocols run a high risk of being set aside in favour of immediate operational necessity.

Realistically we cannot engineer risk down to zero. The goal, therefore, is not to build an impenetrable digital fortress, but to establish a sensible, verified baseline that allows a vessel to absorb an unexpected event and keep moving safely.

Grounding the Solution: The Maritime Cyber Baseline Certification

To bridge this gap between high-level regulation and daily deck operations, the industry requires a practical framework, and IASME‘s Maritime Cyber Baseline (MCB) scheme directly addresses this.

Rather than demanding an overnight infrastructure overhaul, the Maritime Cyber Baseline focuses on high-leverage, practical controls aligned with the NCSC’s guidance. It strips away the jargon to address the operational fundamentals:

• Asset Visibility: Maintaining a definitive, comprehensive inventory of digital and operational assets onboard.
• Network Segmentation: Logically separating critical bridge and engineering control units from crew accommodation Wi-Fi.
• Access Management & Patching: Controlling remote access protocols used for OEM troubleshooting, and establishing how operators safely apply software updates in a marine environment.

By offering a phased pathway – from a Level 1 Verified Self-Assessment to a Level 2 Audited standard – the scheme allows an organisation to progress at a pace that aligns with their actual operational risk.

This evidence-led assurance appears to be shifting from a prospective commercial advantage into a standard market expectation. Increasingly, port authorities, underwriters, and major charterers want more than verbal assurances; they look for independent, verifiable proof that an operator understands and actively manages their digital footprint.

Translating Insight into Operational Resilience

At Assure Technical, we approach maritime security from the perspective that robust protection should never come at the expense of operational fluidity.

In our capacity as a Maritime Cyber Baseline Certification Body, we work directly with organisations to assess operations, verify controls, and formally certify their fleet. Yet, our focus extends well beyond simply issuing compliance certificates; we draw upon our broader background in strategic security consultancy and security system engineering to help operators view their digital footprint through a clear, pragmatic lens.

We recognise that every fleet carries its own unique balance of legacy machinery and modern connectivity. Our role is to act as a supportive partner, tailoring our technical expertise to match the realistic demands faced by your crew on the deck. Whether you are looking to sense-check your current onboard network segmentation or require a formal roadmap to align with international expectations, we aim to make the process straightforward and entirely jargon-free.

If you would like to explore how to establish a verified, sensible framework for your vessels, you can find out more about our certification services on our dedicated Maritime Cyber Baseline page.

I’ll also be on the IASME stand at Seawork Southampton 2026, ready to discuss your operational realities in person, and explore how the Maritime Cyber Baseline (MCB) scheme can provide independent, verifiable proof of security to your charterers and underwriters.

About the Author

Pete Rucinski is the Managing Director and founder of Assure Technical. He began his career as a Weapon Engineer Officer in the Royal Navy, where he spent years ensuring the maximum operational availability of complex weapons, sensors, and communication systems in high-pressure environments across the globe. More recently, he has skippered private vessels across multiple continents. This foundational experience shaped his deeply pragmatic view of maritime technology: at sea, system reliability and safety of life must always take precedence.

As a Chartered Engineer with over 25 years experience in the industry, Pete applies this naval ethos straight to the commercial sector. Rather than viewing fleet security through the lens of rigid compliance checklists, his day-to-day work focuses on establishing a sustainable balance between shore-side IT protocols and the unique technical realities of onboard marine engineering.

This long-standing commitment to practical, industry-wide resilience also guides his strategic advisory work across the broader commercial shipping and workboat communities, where he focuses on helping operators deploy robust, manageable digital defences that protect both the vessel’s systems and the crew who rely on them.