ISO/IEC 27035 Lead Incident Manager Training — Lesson 2: Detection, Reporting, Triage, Classification, Analysis, and Evidence

Learning Objectives

• Interpret the principles, requirements, roles, and dependencies shaping detection, reporting, triage, classification, analysis, and evidence.
• Apply the workflow and produce incident triage and evidence record that another practitioner can review.
• Analyze “containment begins before volatile evidence is preserved” and recommend a proportionate, supported response.

Detailed Topics

• event detection
• incident reporting
• triage
• classification
• severity assessment
• technical analysis
• evidence preservation
• decision logging
• Competence, communication, governance, documented information, risk, validation, and follow-up considerations

Instructor Demonstration

The instructor demonstrates the detection, reporting, triage, classification, analysis, and evidence workflow, identifies the applicable inputs and responsibilities, records checkpoints in incident triage and evidence record, and contrasts the accepted state with a condition where containment begins before volatile evidence is preserved.

Hands-On Exercise

Complete a controlled implementation, audit, assessment, or foundation exercise for Detection, Reporting, Triage, Classification, Analysis, and Evidence. Establish scope and criteria, collect or create evidence, examine “containment begins before volatile evidence is preserved,” reach a supported conclusion, and preserve the result in incident triage and evidence record.

1. Confirm objectives, scope, roles, criteria, stakeholders, and expected outputs.
2. Perform the planned activities while recording assumptions, evidence, and decisions.
3. Test a normal case, an exception, and a follow-up or improvement condition.
4. Document conclusions, owners, due dates, escalation, and verification requirements.

Scenario Analysis

• Identify the requirement or principle with the strongest influence on detection, reporting, triage, classification, analysis, and evidence.
• Compare two defensible responses and explain their governance, risk, and evidence trade-offs.
• Determine how incident triage and evidence record should be approved, retained, reviewed, and updated.

Troubleshooting Guidance

Separate missing evidence from ineffective practice, and distinguish a documentation issue from a control, process, governance, or competence failure. Use incident triage and evidence record to trace the earliest divergence. Treat “containment begins before volatile evidence is preserved” as a hypothesis until the response is validated against the applicable requirement and intended outcome.

Validation Checklist

• The scope, criteria, stakeholders, and intended outcome for detection, reporting, triage, classification, analysis, and evidence are explicit.
• The incident triage and evidence record links statements and decisions to objective, reviewable support.
• Responsibilities, competence, communication, risk, legal duties, and change impact were considered where relevant.
• Findings, corrective actions, monitoring, review triggers, and improvement ownership are clear.

Lesson Outcome

Learners can apply Detection, Reporting, Triage, Classification, Analysis, and Evidence, explain the reasoning used, and defend the result through incident triage and evidence record.