ICS/SCADA Cybersecurity — Lesson 3: Monitoring, Detection, Logging, Incident Triage, and Forensic Readiness

Learning Objectives

• Explain the structures, services, data, settings, roles, and dependencies governing Passive Monitoring and Baseline Behavior.
• Implement and validate Alert Triage, Incident Coordination, and Forensic Readiness and Safety Escalation using reviewable evidence.
• Evaluate the condition where analysts reach the wrong conclusion because Forensic Readiness and Safety Escalation evidence is incomplete and Baseline Behavior context was not preserved and select a proportionate corrective response.

Detailed Topics

• Passive Monitoring applied to the course scenario, expected behavior, dependencies, controls, and evidence.
• Baseline Behavior applied to the course scenario, expected behavior, dependencies, controls, and evidence.
• Alert Triage applied to the course scenario, expected behavior, dependencies, controls, and evidence.
• Incident Coordination applied to the course scenario, expected behavior, dependencies, controls, and evidence.
• Forensic Readiness and Safety Escalation 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 analysts reach the wrong conclusion because Forensic Readiness and Safety Escalation evidence is incomplete and Baseline Behavior context was not preserved.

Hands-On Exercise

Complete a controlled, authorized EC-Council exercise covering Monitoring, Detection, Logging, Incident Triage, and Forensic Readiness 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 Passive Monitoring.
• 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 “analysts reach the wrong conclusion because Forensic Readiness and Safety Escalation evidence is incomplete and Baseline Behavior context was not preserved” 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 Monitoring, Detection, Logging, Incident Triage, and Forensic Readiness, 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.