Incident response gives organizations a structured way to prepare for, detect, assess, contain, and recover from information security incidents. Without a clear process, teams can lose valuable time, communication can break down, and technical issues can become wider business problems.
This guide explains how ISO/IEC 27035 supports practical security incident management. In addition, it shows how organizations can connect incident response with risk management, communication, recovery, and continual improvement.
Why Incident Response Matters
Effective incident response helps teams act consistently when security events escalate into incidents. Therefore, organizations need defined roles, escalation criteria, communication channels, evidence handling, and recovery procedures before a crisis occurs.
For example, a prepared team can assess impact quickly, coordinate containment, protect critical services, and keep relevant stakeholders informed. As a result, the organization can reduce disruption and improve lessons learned after the incident.
Who Should Learn Security Incident Response?
This topic is relevant for information security managers, incident response team members, SOC professionals, IT administrators, risk managers, compliance officers, auditors, and consultants. Moreover, it is useful for leaders who coordinate business, technical, legal, and communication activities during security incidents.
Participants should understand basic information security concepts. However, they do not need identical technical backgrounds because incident management depends on coordinated roles across the organization.
What You Will Learn
- Prepare an incident response structure with clear roles and escalation paths.
- Detect, report, and assess information security events and incidents.
- Prioritize containment actions based on impact and urgency.
- Coordinate eradication, recovery, and stakeholder communication.
- Document incidents and conduct effective post-incident reviews.
- Use lessons learned to improve controls, plans, and response readiness.
Build a Process with ISO/IEC 27035
ISO/IEC 27035 provides guidance for planning and preparing for incident management, detecting and reporting events, assessing incidents, responding, and learning from outcomes. First, organizations establish policies, roles, communication routes, and readiness measures.
Next, teams define how they will identify events, determine whether an incident has occurred, and decide how quickly to escalate. This creates a repeatable process instead of relying on improvised decisions during high-pressure situations.
For official guidance, see the ISO/IEC 27035-1:2023 standard page. The current edition provides the principles and process for information security incident management.
Detect, Assess, and Contain Security Incidents
Strong incident response begins with timely detection and accurate assessment. Therefore, teams should collect relevant information, classify the incident, evaluate business impact, and determine the required response level.
For instance, containment actions may differ for malware, compromised accounts, data exposure, or service disruption. The response team should balance speed with evidence preservation and operational continuity.
Recover and Learn from Security Incidents
Recovery should restore normal operations while reducing the chance of recurrence. After containment and eradication, teams can validate systems, restore services, monitor for further activity, and communicate the status clearly.
Furthermore, post-incident reviews help organizations identify root causes, control weaknesses, communication gaps, and process improvements. Consequently, each incident becomes an opportunity to strengthen future readiness.
Training and Professional Certification
Structured training can help professionals practice these activities through realistic scenarios, exercises, and response planning. PECB currently offers ISO/IEC 27035 training and professional certification pathways, including Foundation and Lead Incident Manager options.
However, training attendance alone does not automatically grant a professional certification. Credential requirements depend on the selected pathway, relevant examination, and any applicable professional experience requirements.
Connect Incident Response with Broader Security Management
Incident response works best when it connects with wider information security governance. For example, organizations can use incident findings to update risk assessments, security controls, policies, and ISMS improvement actions.
For related guidance, read our ISO 27001 training guide. You can also explore more practical resources in our IT Security articles.
Strengthen Incident Response Readiness
Ultimately, incident response is not only about reacting faster. It is about building a coordinated process that improves detection, decision-making, communication, recovery, and organizational learning.
Finally, when you are ready for structured learning, Enroll and review upcoming training options.
Watch Our Course Overview
