ICS/SCADA Cybersecurity — Lesson 1: ICS and SCADA Architecture, Safety, Assets, Protocols, and Trust Boundaries

Learning Objectives

• Explain the structures, services, data, settings, roles, and dependencies governing Ot Architecture and Process Safety.
• Implement and validate Asset Inventory, Industrial Protocols, and Trust Boundaries and Engineering Dependencies using reviewable evidence.
• Evaluate the condition where the observed result differs from the approved Ot Architecture baseline because Process Safety scope, permissions, or prerequisites were missed and select a proportionate corrective response.

Detailed Topics

• Ot Architecture applied to the course scenario, expected behavior, dependencies, controls, and evidence.
• Process Safety applied to the course scenario, expected behavior, dependencies, controls, and evidence.
• Asset Inventory applied to the course scenario, expected behavior, dependencies, controls, and evidence.
• Industrial Protocols applied to the course scenario, expected behavior, dependencies, controls, and evidence.
• Trust Boundaries and Engineering Dependencies applied to the course scenario, expected behavior, dependencies, controls, and evidence.

Instructor Demonstration

The instructor traces an operational-technology team must reduce cyber risk while preserving process safety, availability, engineering integrity, and recovery capability. The walkthrough connects tools, configuration or analysis logic, system messages, decisions, and evidence captured in the OT asset and trust-zone map, monitoring plan, incident playbook, and resilience improvement portfolio. It also tests the exception where the observed result differs from the approved Ot Architecture baseline because Process Safety scope, permissions, or prerequisites were missed.

Hands-On Exercise

Complete a controlled, authorized EC-Council exercise covering ICS and SCADA Architecture, Safety, Assets, Protocols, and Trust Boundaries and preserve the verified result in the OT asset and trust-zone map, monitoring plan, incident playbook, and resilience improvement portfolio.

1. Confirm scope, authorization, prerequisites, versions, identities, dependencies, and acceptance criteria.
2. Execute the workflow while recording settings, outputs, events, decisions, and system messages.
3. Test normal behavior, one boundary condition, and the stated exception without targeting real third-party systems.
4. Document corrections, evidence, ownership, retest criteria, rollback or recovery, and handover actions.

Scenario Analysis

• Identify which object, service, policy, setting, or sequence most strongly influences Ot Architecture.
• Compare two defensible responses and explain technical, security, operational, legal, and support trade-offs.
• Determine how the OT asset and trust-zone map, monitoring plan, incident playbook, and resilience improvement portfolio should be approved, retained, retested, and updated.

Troubleshooting Guidance

Start where expected behavior first differs from the observed result. Check authorization, prerequisites, identity, configuration order, data quality, version compatibility, connectivity, status, resource limits, and evidence separately. Treat “the observed result differs from the approved Ot Architecture baseline because Process Safety scope, permissions, or prerequisites were missed” as a hypothesis until logs, settings, captured outputs, and retest outcomes confirm the cause.

Validation Checklist

• Required components, identities, permissions, settings, safety controls, and dependencies are present.
• The OT asset and trust-zone map, monitoring plan, incident playbook, and resilience improvement portfolio connects each conclusion to objective, reviewable evidence.
• Normal processing, a boundary condition, dependency behavior, and the stated exception were tested.
• Corrections, ownership, retest criteria, rollback or recovery, documentation, and operational handover are complete.

Lesson Outcome

Learners can apply ICS and SCADA Architecture, Safety, Assets, Protocols, and Trust Boundaries, explain the resulting security or operational behavior, and defend the outcome through the OT asset and trust-zone map, monitoring plan, incident playbook, and resilience improvement portfolio.