What are the five phases of the incident response lifecycle?

The five phases of the incident response lifecycle are crucial for effectively managing and responding to security incidents. The correct answer is Preparation, Detection and Analysis, Containment, Eradication and Recovery, and Post-Incident Activity.

Preparation involves establishing and training the incident response team, as well as developing incident response plans and strategies. This sets the foundation for all future incident response activities.

Detection and Analysis focus on identifying and understanding the nature of the security incident, gathering data, and analyzing it to confirm the occurrence of the incident and assess its potential impact on the organization.

Containment, Eradication, and Recovery are critical steps to manage the incident's effects. Containment involves restricting the incident's spread, while eradication focuses on removing the cause of the incident. Recovery entails restoring systems and services to normal operation and ensuring that they are functioning securely.

Finally, Post-Incident Activity is essential for learning from the incident. This phase includes reviewing the incident response process, identifying lessons learned, and updating the incident response plan to improve future response efforts.

This structured approach ensures that organizations can handle incidents more effectively, minimize damage, and fortify defenses against future incidents.