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Security Operations · Intermediate

After-Action Report (AAR)

A formal document summarizing an incident or exercise, its timeline, outcomes and recommendations.

Definition

AARs record what happened, the response timeline, impact, root cause, what worked and what did not, and corrective actions with owners and deadlines. They support accountability, compliance and continuous improvement.

Example

An AAR recommending MFA for all VPN users after an account compromise.

Exam tip

Exercises and real incidents should both produce AARs.

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