How railway cyber security works in a nutshell

Step 1: Plan Security Management: This is the first step in the process, indicating the importance of planning and managing security measures effectively.

Step 2: Security Risk Analysis (IEC 62443-3-2): The second step involves conducting a security risk analysis in accordance with the IEC 62443-3-2 standard. This step is crucial for identifying potential security risks and vulnerabilities.

Step 3: Security Requirements: The next step focuses on establishing security requirements based on the risk analysis. This ensures that appropriate security measures are implemented to mitigate identified risks.

Step 4: Design & Implementation: This is the first step in the process, focusing on the design and implementation of cyber security measures. It involves creating and putting into action the necessary security protocols and systems to protect railway infrastructure.

Step 5: Test Security: The second component involves testing the security measures that have been implemented. This testing includes:

• Requirement-based testing: Ensuring that the security measures meet the specified requirements.
• Threat-based testing: Evaluating the security measures against potential threats.
• Vulnerability-based testing: Identifying and addressing vulnerabilities within the system.
• Penetration testing: Simulating cyber attacks to test the effectiveness of the security measures.

Step 6: Provide Evidence: Security Case (CENELEC TS 50701): This step involves providing evidence to build a security case in accordance with the CENELEC TS 50701 standard. This process is crucial for demonstrating that the necessary security measures have been implemented effectively.

Step 7: Secure Operation & Decommissioning: This step focuses on ensuring secure operations and includes the regular updating of risk assessments. It also covers the secure decommissioning of systems, ensuring that security is maintained throughout the lifecycle of the railway systems.

Transparency notice: The infographics was converted to text using Mistral AI and text was checked for correctness by the author.