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Training Camp • Cybersecurity Glossary
An After-Action Report (AAR) documents incident response lessons learned, identifying gaps and corrective actions per NIST SP 800-61.
After-Action Report (AAR) Definition: An After-Action Report (AAR) documents incident response lessons learned, identifying gaps and corrective actions per NIST SP 800-61.
An After-Action Report (AAR) is a structured post-incident document that captures what happened during a security event, what the response did well, where gaps existed, and what corrective actions are required. It feeds the lessons-learned phase of incident response frameworks such as NIST SP 800-61, turning a single incident into durable process, detection, and control improvements.
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