During a post-incident review meeting, a security analyst is tasked with improving the incident response process based on recent events. Which of the following actions would BEST ensure a positive impact on future incident response capabilities?
Revising all security training materials without assessing their relevance to the incident.
Deciding that the existing Incident Response Plan is sufficient since the incident was eventually contained.
Updating the Incident Response Plan with specific improvements identified from the incident.
Conducting a review of historical incident trends without making changes to existing procedures.