Which statement best describes ISA/IEC 62443?

Which statement best describes ISA/IEC 62443?

• A. A general hardware standard used for safety sensors.
• B. A comprehensive framework for industrial automation and control systems security, covering governance, risk management, secure development, and lifecycle security controls.
• C. A software licensing policy.
• D. An environmental compliance guideline.

Answer: (B)

ISA/IEC 62443 is a comprehensive framework for securing industrial automation and control systems. It provides a structured approach that organizations use to build and sustain a security program around four key areas: governance (defining roles, policies, and accountability), risk management (identifying assets, threats, and risks and choosing appropriate mitigations), secure development (applying security practices throughout software and system development), and lifecycle security controls (maintaining and updating security throughout the system’s life, including patching, configuration management, and incident response). It also embraces practical security concepts like defense-in-depth, segmentation into zones and conduits, and ongoing monitoring and improvement. It’s not about hardware specifications, licensing policies, or environmental rules; it’s about establishing a broad, repeatable framework to protect industrial control environments.

ISA/IEC 62443 is a comprehensive framework for securing industrial automation and control systems. It provides a structured approach that organizations use to build and sustain a security program around four key areas: governance (defining roles, policies, and accountability), risk management (identifying assets, threats, and risks and choosing appropriate mitigations), secure development (applying security practices throughout software and system development), and lifecycle security controls (maintaining and updating security throughout the system’s life, including patching, configuration management, and incident response). It also embraces practical security concepts like defense-in-depth, segmentation into zones and conduits, and ongoing monitoring and improvement. It’s not about hardware specifications, licensing policies, or environmental rules; it’s about establishing a broad, repeatable framework to protect industrial control environments.