Definition
An incident response plan (IRP) is a documented set of procedures an organization follows when a security breach or cyberattack occurs. It outlines the steps necessary to detect, contain, eradicate, and recover from an incident, minimizing damage and downtime. The plan assigns roles and responsibilities, ensuring a coordinated and efficient response. It works by providing a clear roadmap for teams to follow during stressful situations, preventing panic and ad hoc decision making. This matters on the job because a well-executed IRP can significantly reduce financial losses, reputational damage, and legal liabilities associated with security incidents. For example, an IRP might detail how to isolate infected systems, notify affected parties, and preserve evidence for forensic analysis. Unlike a business continuity plan which focuses on maintaining operations during disruptions, an IRP specifically addresses the immediate aftermath of a security incident. This critical concept is frequently tested on certifications like CompTIA Security+, CySA+, and CISSP.