Containment, Eradication, and Recovery
Once an incident is detected, the immediate priority is containing the damage, removing the threat, and restoring normal operations.
Containment
- Isolate affected systems
- Block malicious IPs and domains
- Disable compromised accounts
- Preserve evidence for forensics
Eradication
- Remove malware and backdoors
- Patch vulnerabilities that were exploited
- Reset compromised credentials
- Verify system integrity
Recovery
- Restore systems from verified backups
- Monitor for re-infection
- Gradually restore services
- Validate that the threat is eliminated