How to Create an Incident Response Plan
Build a structured incident response plan for handling security breaches, outages, and data incidents.
What You'll Learn
This advanced-level guide walks you through how to create an incident response plan step by step. Estimated time: 14 min.
Step 1: Define incident severity levels
Create a severity classification system from P1 to P4 with clear criteria, response times, and escalation paths for each level.
Step 2: Establish response roles
Define incident commander, communications lead, technical lead, and scribe roles with clear responsibilities and escalation chains.
Step 3: Build response procedures
Document step-by-step procedures for common incidents — data breach, DDoS attack, credential compromise, and service outage.
Step 4: Create communication templates
Prepare templates for internal notifications, customer communications, status page updates, and post-incident reports.
Step 5: Practice and improve
Conduct tabletop exercises quarterly, run game day simulations, and update the plan based on real incidents and practice findings.
Frequently Asked Questions
How fast should we respond to incidents?▾
P1 critical incidents require response within 15 minutes. P2 high within 1 hour. P3 medium within 4 hours. P4 low within 1 business day.
Should we communicate during an incident?▾
Yes — communicate early and often. A brief honest update is better than silence. Use a status page for external communication and Slack channels for internal coordination.
What is the most important post-incident action?▾
A blameless post-mortem that identifies root causes, contributing factors, and concrete action items. The goal is learning and prevention, not assigning blame.