Rail Cyber Security
Digital transformation in the rail industry is accelerating – but so are the risks. Arcanum helps operators, regulators, and suppliers secure critical OT and IT systems from growing cyber threats.
Protecting Rail Infrastructure, Preserving Trust
As Operational Technology (OT) and Information Technology (IT) systems become increasingly integrated – from digital signalling and fleet platforms to passenger Wi-Fi and ticketing – the cyber attack surface across the rail network is rapidly expanding. A successful breach could cause major service disruption, financial loss, or even endanger public safety. Arcanum brings proven expertise in defending these complex environments, working closely with the rail industry to build cyber resilience, meet compliance requirements, and protect critical national infrastructure.
Want to understand your risk? Request a rail-specific assessment.
Cyber threats on the rail industry are real
With the rise of smart transportation and Industrial Internet of Things (IIoT) devices, the UK rail sector is more exposed to cyber threats than ever before:
2024
Insider Threat at Network Rail
In 2024, passengers at 19 UK rail stations were confronted with alarming messages while using station Wi-Fi—a cyber vandalism incident linked to an insider. Arcanum helps rail clients deploy strong access controls, user monitoring, and a culture of cyber awareness to reduce internal risks.
2021
Ransomware Attack on Northern Trains
In 2021, a ransomware attack disabled Northern Trains’ newly installed £17 million ticketing machines, leaving them offline for over a week. Arcanum helps organisations implement layered defences and effective continuity planning to reduce downtime and support rapid recovery.
How Arcanum Delivers Rail Cyber Security
Arcanum brings proven experience and deep technical expertise to rail cyber security, supporting organisations in:
Cyber Risk Management
We help you identify, assess, and mitigate cyber risks across your OT and IT environments—aligning cyber strategy with business operations.
Compliance with Industry Standards
Our consultants apply best practices and ensure readiness for a wide range of standards and frameworks, including:
- ISA/IEC 62443
- ISO/IEC 27001 & 27005
- NIS & NIS2
- OG-0086 COMAH
- NCSC Cyber Assessment Framework (CAF)
- NIST CSF & NIST 800-82
Penetration Testing & Assessments
Ethical hacking and vulnerability assessments tailored to rail sector technologies, uncovering threats before they impact operations. Read more about Penetration Testing
Network Architecture Review
Reviewing and hardening system design to ensure secure segmentation, resilience, and secure remote access for control networks.
Asset Discovery & Monitoring
Gaining full visibility into connected rail assets—essential for threat detection and incident response.
Supply Chain Security
We help you understand and manage third-party risks by embedding cyber assurance throughout your supplier ecosystem.
What our clients say
Daren Wood, CTO for Resonate says:
“We’ve been extremely impressed with Arcanum’s approach from cyber strategy to technical support. Since we started working together only a few months ago, they have provided our board with clarity and confidence about our approach, helping us to prioritise and better manage our risks. They have also enhanced our teams with their disciplined approach and , especially with their deep knowledge and practical experience of Operational Technology.
In a world where we are constantly reminded of the threats facing businesses and our national infrastructure, we’re delighted to have Arcanum as a trusted partner to build cyber resilience in our business and the services we offer our customers.”
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Rail Cyber Security Expertise You Can Trust
As a NCSC Assured Service Provider, Arcanum delivers cyber consultancy that meets the highest national security standards. Our Operational Technology (OT) specialists have worked extensively in rail, aviation, energy, defence, and other safety-critical sectors.
We provide strategic insight and technical depth to help you build secure, future-ready rail systems.
Rail Industry Cyber Security Services at a Glance
| Service Area | What We Deliver |
|---|---|
| Risk Assessments | Identify and prioritise threats across OT and IT systems |
| Compliance Support | Meet sector-specific standards like IEC 62443, NIS2, CAF, and more |
| Penetration Testing | Simulated attacks to uncover and remediate weaknesses |
| Asset Discovery | Continuous visibility of devices and systems within your infrastructure |
| Network Architecture Review | Secure design validation, segmentation, and access control reviews |
| Cyber Security Management System | Strategic planning, governance frameworks, and policies |
| Supply Chain Management | Third-party assurance and procurement risk analysis |
FAQs
How is OT cyber security different from IT security?
OT environments control physical processes like signalling and rolling stock systems. A cyber breach in OT can have real-world safety consequences, so controls must be adapted for availability and reliability—not just data protection.
What’s the relevance of IEC 62443 in rail?
ISA/IEC 62443 is a global standard for securing Industrial Automation and Control Systems (IACS), essential for railway cyber security. It offers a risk-based framework to safeguard critical Operational Technologies (OT) such as signalling systems, train control, and trackside infrastructure. Arcanum aligns this standard with regulatory requirements, including supporting Safety Integrity Level (SIL) cyber security requirements.
Can Arcanum support incident response?
Yes. We help clients prepare, respond, and recover from cyber incidents. This includes business continuity planning, forensic analysis, and lessons-learned reporting.
Can you work with station Wi-Fi and passenger-facing systems?
Absolutely. We’ve helped clients assess and secure public-facing systems. We can help secure systems such as station connectivity, digital displays, ticketing, and mobile platforms.
Partner with Arcanum to secure your systems
Cyber resilience in the rail industry is not a luxury – it’s a necessity.