Digitising roads, rail & maritime, securely

Turning Connected Infrastructure into Public Value

Across the UK, transport networks are becoming software‑defined systems. Control rooms depend on real‑time telemetry from connected assets; signals and signalling systems are remotely managed; and future rail communications such as FRMCS and 5G promise gains in performance, safety and efficiency. Artificial intelligence is already improving incident detection, asset maintenance and operational decision‑making. Together, these capabilities enable key outcomes: safer journeys, greater reliability, lower emissions and better value for money.

Yet this digital progress creates a dilemma. As transport infrastructure becomes more connected, cyber exposure across IT, operational technology (OT) and supply chains
 
grows. The challenge is no longer whether to digitise, but how to do so securely, proportionately and at pace.

The Operating Reality Facing Transport Organisations

Most transport authorities manage complex estates combining legacy and modern technology. Life‑expired roadside, trackside and signalling assets typically coexist with cloud platforms, APIs and data‑sharing services. Older SCADA and industrial control systems—never designed for today’s threat landscape—now interface with enterprise IT and public networks.

System interdependencies have deepened. In road and rail, regional operations often depend on shared suppliers, managed service providers and common data platforms, while ports and vessels increasingly rely on integrated technology, satellite communications and remote access. A compromise in one area can cascade quickly across organisational boundaries and geographies.

These realities sit alongside familiar pressures: constrained budgets, limited cyber and OT skills, and expectation of continuous availability where downtime is rarely acceptable. Across modes, the challenge is to strengthen resilience in ways that are practical and aligned with operational continuity.

A Clear Policy Tailwind in the UK

The UK policy environment is reinforcing the need for action. The National Cyber Security Centre’s Cyber Assessment Framework (CAF) has become the baseline for outcome‑focused assurance across critical national infrastructure. Under Cyber Security Resilience Bill (CSRB), compliance will become mandatory for a range of Operators of Essential Services and their suppliers. With implementation expected from 2027, organisations that build capability now will be better positioned for consistent audits and regulatory scrutiny.

National strategies for transport data, digital control rooms, connected vehicles and rail communications are driving strong investment. For operators, the priority is ensuring cyber resilience enables transformation rather than slowing it.

How the Risk Picture Changes

As systems become more connected, the risk landscape shifts significantly. IT/OT convergence expands the blast radius of cyber incidents, with misconfigured cloud services or remote access creating potential pathways from corporate networks into operational environments.

Growing reliance on SaaS, third parties and shared platforms mean critical vulnerabilities may sit outside an organisation’s control. Legacy estates add further exposure, including flat networks, unsupported firmware and “temporary” workarounds that become permanent features of operations.

Transport data, from telemetry to enforcement and customer services, creates additional privacy, safety and reputational risks if compromised. Recent incidents across essential services demonstrate real and immediate threats.

What Good Looks Like in Practice

Effective cyber resilience in transport is operational, proportionate and evidence‑led. It begins with outcome‑based assurance aligned to CAF and GovAssure, providing a maturity baseline and a realistic roadmap tailored to operational constraints.

For transport, resilience must extend deeply into OT and ICS environments. Practical threat modelling, secure architecture design, configuration hardening and targeted testing are essential across traffic management systems, signalling, control centres and connected fleets. Security must reflect how assets are operated, maintained and recovered—not just how they are depicted on diagrams.

Supply‑chain risk management is equally critical. Leading organisations integrate cyber requirements into procurement and contract management, backed by clear responsibilities and repeatable supplier‑assurance processes. These shifts cyber from a point‑in‑time check to a sustained operational capability.

Major future communications programmes—such as the transition from Airwave to ESN and the introduction of FRMCS—will underpin next‑generation control rooms and rail operations. Integrated cyber assurance from the outset is essential to protect public trust and service reliability.

A Practical Next Step

Transport leaders do not need multi‑year transformation programmes to begin strengthening their cyber resilience. A short, CAF‑aligned discovery can surface priority risks and evidence gaps. An OT security quick scan on a critical asset can surface issues early, while a supplier‑cyber pilot in procurement can de‑risk future contracts–together building momentum without disrupting services.

Actica helps organisations take that first step with confidence. We support transport clients with CSRB‑focused gap analyses that clarify legal obligations and pinpoint where capability uplift is needed ahead of mandatory regulation. We also deliver CAF‑ and NCSC‑aligned maturity assessments, producing evidence‑based action plans that strengthen resilience without disrupting operations.

Whether assessing Cyber Security & Resilience Bill readiness, benchmark against best‑practice frameworks, or prioritise operational risks, Actica provides pragmatic guidance in real transport operations.

If you would value an initial conversation on where to focus or build momentum, Actica’s cyber team is ready to support you.