Length: 2 Days

ISA/IEC 62443 – Security Requirements Writing Industrial Automation and Control Systems Essentials Training by Tonex

Industrial Automation, SCADA, ICS

Organizations in manufacturing, energy, utilities, and transportation face increasing threats to their industrial automation and control systems (IACS). This course equips professionals with a solid understanding of the ISA/IEC 62443 standard and the skills to write effective security requirements for protecting industrial systems. By mastering these guidelines, participants can ensure resilience, compliance, and operational reliability. A key focus is on addressing cybersecurity vulnerabilities that could lead to disruption, data compromise, or safety hazards. Strengthening IACS security not only safeguards critical infrastructure but also directly supports robust cybersecurity defense strategies across enterprise and operational environments.

Learning Objectives:

  • Understand the ISA/IEC 62443 standard structure and purpose
  • Learn to define and apply security levels within IACS environments
  • Develop effective security requirement statements for IACS projects
  • Align security requirements with system lifecycle and design principles
  • Apply requirement writing to real-world IACS use cases
  • Strengthen resilience against threats with cybersecurity-focused requirements

Audience:

  • Industrial Control Engineers
  • IT and OT Security Managers
  • Systems Integrators
  • Compliance Officers
  • Plant Operations Managers
  • Cybersecurity Professionals

Course Modules:

Module 1: Foundations of ISA/IEC 62443

  • Purpose and scope of the standard
  • Importance for industrial control systems
  • Key terminology and definitions
  • Structure of ISA/IEC 62443 series
  • Understanding zones and conduits
  • Cybersecurity drivers in IACS

Module 2: Security Levels and Objectives

  • Defining security levels (SL1–SL4)
  • Relationship to system risk profiles
  • Mapping security objectives to requirements
  • Aligning with organizational policies
  • Practical use of security levels
  • Common pitfalls in SL implementation

Module 3: Writing Effective Requirements

  • Characteristics of good requirements
  • Security requirement types in IACS
  • Functional vs. non-functional requirements
  • Avoiding ambiguity in requirement statements
  • Traceability across lifecycle phases
  • Examples of strong requirement writing

Module 4: Integration with System Lifecycle

  • Linking requirements to lifecycle phases
  • Design considerations for secure systems
  • Implementation phase requirements
  • Verification and validation methods
  • Maintenance and change management
  • Continuous improvement strategies

Module 5: Practical Application in IACS

  • Case examples of requirement writing
  • Security for network segmentation
  • Authentication and access control
  • Data integrity and confidentiality needs
  • Monitoring and incident response requirements
  • Supply chain security considerations

Module 6: Compliance and Future Trends

  • ISA/IEC 62443 compliance process
  • Role of standards in regulatory frameworks
  • Integrating with ISO 27001 and NIST guidance
  • Emerging cybersecurity threats to IACS
  • Adapting requirements to new technologies
  • Future directions for IACS cybersecurity

Strengthen your ability to design and enforce robust cybersecurity protections for industrial systems. Enroll in Tonex’s ISA/IEC 62443 Essentials Training today and gain the expertise to write effective, future-ready security requirements.

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