The primary objective of incident triage is to categorize events based on their severity, impact, urgency, and priority. Incident triage helps the security operations center (SOC) to allocate the appropriate resources, assign the relevant roles and responsibilities, and determine the best course of action for each event. Incident triage also helps to filter out false positives, reduce noise, and focus on the most critical events that pose a threat to the organization’s information security.
Coordination of communications, mitigation of vulnerabilities, and containment of threats are important tasks that are performed during the incident response process, but they are not the primary objective of incident triage. Coordination of communications ensures that the relevant stakeholders are informed and updated about the incident status, roles, actions, and outcomes. Mitigation of vulnerabilities addresses the root causes of the incident and prevents or reduces the likelihood of recurrence. Containment of threats isolates and stops the spread of the incident and minimizes the damage to the organization’s assets and operations. These tasks are dependent on the outcome of the incident triage, which determines the scope, severity, and priority of the incident. References = CISM Certified Information Security Manager Study Guide, Chapter 8: Security Operations and Incident Management, page 2691; CISM Foundations: Module 4 Course, Part One: Security Operations and Incident Management2; Critical Incident Stress Management - National Interagency Fire Center3; Critical Incident Stress Management - US Forest Service4