Conducting Post-Incident Lessons Learned

When to Use

• After any security incident has been fully resolved and recovery completed
• Following tabletop exercises or IR simulations
• After significant near-miss events
• Quarterly review of accumulated incident trends
• When IR playbooks need updating based on real-world experience

Prerequisites

• Incident fully resolved (containment, eradication, recovery complete)
• Incident timeline and documentation gathered
• All incident responders available for review session
• Meeting space for collaborative discussion
• Incident ticketing system data for metrics analysis

Workflow