CYBER SECURITY

Your Partner for Safe and Secure Operational Technology

With cyber threats against critical infrastructure on the rise—railway cyber incidents have surged 220% in the past five years—our tailored solutions provide a practical, cost-efficient path to full compliance while addressing risks across executive, IT, and operational levels.

Our top-down cybersecurity approach prioritizes risk management based on criticality, ensuring that clients efficiently allocate resources to safeguard their operations. We begin with a rapid assessment of your Operational Technology (OT) assets, followed by an in-depth analysis of high-risk systems. Recognizing that no single solution fits all, we deliver customized, vendor-independent cybersecurity services, leveraging the recognized expertise of Complete Cyber alongside our internal specialists.
We help our clients mitigate cyber risks with:

  • Safety Case: Alignment of cyber security assurance into the operational safety case.
  • Specialized Railway OT & Safety Expertise: Combining cybersecurity and operational safety expertise to protect rail & metro systems.
  • A Pragmatic, Cost-Efficient Approach: Risk-focused, compliance-driven strategies that maximize security without unnecessary costs.
  • Real-Time Cyber Threat & Regulatory Monitoring: Keeping you ahead of evolving cyber risks and industry standards.

Our approach

Our Cybersecurity Assessment for Operational Technology (OT) provides a comprehensive evaluation of OT environments to identify vulnerabilities, assess risks, and ensure compliance with local regulations and industry cybersecurity standards. Unlike traditional IT assessments, OT cybersecurity focuses on protecting physical processes, real-time operations, and safety-critical systems while maintaining availability and reliability.

We take a risk-driven, compliance-focused, and pragmatic approach, delivering a structured strategy to safeguard critical OT environments while ensuring operational resilience. Our flexible assessment framework allows clients to choose between a full-scope evaluation or targeted reviews, ensuring a tailored, efficient, and business-aligned cybersecurity strategy.

Assessment Services

Scope (Prioritisation)

Identifying and prioritizing critical OT assets, systems, and networks based on operational importance and potential cyber risks based upon our latest Cyber Risk Mapping.

Governance Review

Evaluating cybersecurity policies, frameworks, and governance structures to ensure alignment with industry best practices and regulatory requirements.

Risk Review on OT Assets

Perform a risk-based vulnerability assessment on key Operational Technology (OT) components including identification of weak points in train control, signalling, and maintenance management. Map against real-world cyber threats affecting the railway sector.

Compliance Check

Verifying adherence to relevant cybersecurity regulations and standards (e.g., IEC 62443, NIST, NIS2) to ensure regulatory compliance.

Assessment Report & Recommendations

  • Delivering a comprehensive report addressing governance gaps, security vulnerabilities, and compliance shortfalls.
  • Propose cost-effective, risk-based solutions to mitigate cyber threats while ensuring compliance.

Our approach

Through a structured, risk-based implementation approach, we help our clients establish robust cybersecurity measures across governance, risk management, operational security, and incident response to ensure compliance, resilience, and long-term cyber defence.

Our services are modular and adaptable, allowing clients to select individual components or a comprehensive implementation tailored to their needs. We offer flexible delivery models, including turnkey solutions, joint development, or peer reviews at various stages, ensuring a scalable, cost-effective, and compliance-driven cybersecurity strategy.

Implementation Services

Planning

Develop a structured implementation roadmap, aligning cybersecurity measures with business objectives, regulatory requirements, and operational constraints.

Governance Development

  • Establish a cybersecurity governance framework, defining roles, responsibilities, and escalation procedures across IT, Operations & Safety, and Executive levels.
  • Integrate cybersecurity governance into existing risk management and corporate decision-making processes.

Risk Management Framework, Policies, Organization, Training

  • Define a cyber risk management framework and policies aligned with industry standards (e.g., NIS D2, IEC 62443, NIST, TS 50701), covering network security, data protection, access control, and incident response.
  • Design an organizational structure for cybersecurity oversight, ensuring coordination between IT, OT, and executive leadership.
  • Conduct awareness and training programs for employees, contractors, and third-party vendors to promote cybersecurity best practices.

    • Contractual Support

  • Integrate cybersecurity requirements into vendor and supplier contracts to ensure compliance with security standards and risk management policies.
  • Identify additional contractual requirements and support the operator in negotiating necessary contract variations with the Public Transport Authority.
  • Support claim management by providing evidence-backed justifications for security investments, contractual changes, or liability mitigation.

    • OT Risk Assessment & Mitigation

  • Perform comprehensive cybersecurity risk assessments on Operational Technology (OT) assets, including train control systems, signaling, and SCADA environments.
  • Identify and mitigate vulnerabilities in OT environments, applying risk-based strategies to enhance security resilience.

    • Security Testing

  • Conduct penetration testing exercises to assess the resilience of IT and OT infrastructure.
  • Perform vulnerability assessments and scenario-based exercises to validate security controls, organizational response, and system robustness.

    • SOC Specification

  • Define requirements and specifications for a Security Operations Center (SOC) to enable proactive monitoring, threat detection, and incident response.
  • Support the organization in procuring the appropriate SOC capabilities tailored to operational needs.

    • Incident Response Management

  • Establish incident response plans, protocols, and escalation procedures to ensure rapid detection, containment, and recovery from cyber incidents.
  • Define post-incident analysis and recovery procedures, ensuring lessons learned are integrated into future security enhancements.

    • Our approach

    Our cybersecurity assurance services provide a structured, ongoing process to help organizations stay ahead of emerging threats, maintain and demonstrate compliance, and ensure the security and reliability of OT environments. We validate that security controls function as intended, enabling organizations to prevent, detect, respond to, and recover from cyber threats effectively.

    We offer one-time or continuous security testing, including penetration testing and vulnerability assessments, to identify and mitigate weaknesses before exploitation. Our approach evaluates, validates, and enhances an organization’s security posture, ensuring that cyber risks are well-managed and critical systems remain secure, compliant, and resilient.

    Our services can be delivered as a standalone evaluation or as part of a broader security strategy, with flexible models including turnkey assurance programs, joint validation efforts, and peer reviews, ensuring a robust, cost-effective, and compliance-driven cybersecurity posture.

    Services

    Security Testing & Vulnerability Assessments

    • Perform one time or regular penetration testing on railway OT systems.
    • Conduct security audits to evaluate effectiveness of implemented controls.

    Incident Reporting Analysis

  • Review past incidents to identify root causes, security gaps, and lessons learned.
  • Identify attack patterns to enhance security defences.
  • Provide forensic analysis, recommendations and mitigation strategies to strengthen defences and prevent future breaches.

    • Cyber Assurance Case Development

  • Build structured assurance documentation demonstrating safe and secure operations.
  • Provide evidence-based reports showcasing compliance with industry standards and regulations (e.g., IEC 62443, NIS D2, TS 50701).
  • Facilitate certification processes for railway cybersecurity compliance.

    • Our approach

    Our Cybersecurity Monitoring & Upgrade services provide continuous protection by proactively identifying threats, adapting to evolving risks, and ensuring compliance with the latest regulations and best practices. This ongoing process enhances resilience against cyber threats, keeping OT environments secure, compliant, and operationally robust over time.

    We offer real-time monitoring, regulatory tracking, periodic security reviews, and on-demand upgrades to help organizations detect, respond to, and mitigate threats before they cause disruption. Our approach ensures that cybersecurity frameworks remain up to date, efficient, and aligned with emerging industry standards.

    Services

    Threat Intelligence & Monitoring

    • Continuously track emerging cyber threats specific to railway OT systems.
    • Implement real-time monitoring and anomaly detection to identify risks early.

    Regulation & Compliance Monitoring

  • Stay ahead of evolving cybersecurity regulations and industry standards (e.g., NIS D2, IEC 62443, TS 50701).
  • Ensure security frameworks and policies align with legal requirements and best practices.

    • Cybersecurity Periodic Review

  • Conduct regular assessments to evaluate the effectiveness of security measures.
  • Perform compliance audits to ensure adherence to industry standards.
  • Identify gaps and optimization opportunities to strengthen cybersecurity defences.

    • On-Demand Security Upgrades

  • Implement targeted security enhancements based on newly identified vulnerabilities.
  • Upgrade systems, policies, and response plans to counter emerging threats.
  • Optimize SOC capabilities for enhanced threat detection and response.

    • Our services

    O&M Advisory

    • Bidding
    • Launching
    • Performing

    Digital Services

    • Enterprise Architecture
    • IT Programme Delivery
    • Maintenance Management Systems
    • Digital Companions ©

    Cyber Security

    • Assessment
    • Implementation
    • Assurance
    • Monitoring & Upgrade

    Acciona Metro
    Alstom Metro
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    Ardian
    Arriva
    ATM
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    Ferrovie italy
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    HITATCHI Metro
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    OHL logo
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    Riyadh Metro
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    Serco
    Siemens
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    Voestalpine