Incident Response: The First 72 Hours

Key Takeaways

What You Need to Know

A tactical guide to detection, containment, and recovery in the critical early hours of a cyber incident.

Hours 0-4: Detection & Triage

Initial alert validation, severity classification, incident commander activation, and stakeholder notification.

Hours 4-24: Containment

Isolate affected systems, preserve forensic evidence, deploy monitoring, and establish command communications.

Hours 24-72: Eradication & Recovery

Remove threat actor presence, restore from clean backups, validate system integrity, and begin root cause analysis.

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