ISC2 CISSP Practice Question

The correct answer is 'Revised security controls and procedures addressing identified weaknesses.' The lessons learned phase is a crucial part of the incident response lifecycle that focuses on improving future response capabilities by analyzing what went well and what didn't during an incident. The incident timeline may be created during the review, but the most valuable output for the operations team is identification of the security weaknesses. This information allows the team to implement concrete improvements to prevent similar incidents in the future. This involves revising security controls, procedures, and policies based on the findings. Similarly, while management reports are important for communication, they are not as valuable as the actual security improvements that result from the lessons learned process. The lessons learned phase should lead to actionable changes that strengthen the organization's security posture.