Building an Incident Response Program That Works When It Counts

Every organization gets breached eventually. The difference between a breach that becomes a minor incident and one that becomes a major business disruption is almost always the quality of the incident response program — specifically, whether the team has practiced the response before they need to execute it.

The Four Phases

Preparation: The work done before an incident. Effective preparation includes documented runbooks for common incident types, established communication trees, pre-negotiated IR retainer contracts, evidence preservation procedures, and regular tabletop exercises.

Detection and analysis: Identifying that an incident is occurring and characterizing its scope. The harder part isn’t detection (modern EDR and SIEM tools detect most incidents) — it’s rapid scoping. How far has the attacker moved? What data may have been accessed?

Containment, eradication, and recovery: Stopping the bleeding, removing the attacker from the environment, and restoring normal operations. Premature containment before full scoping lets attackers retain footholds that weren’t found.

Post-incident activity: The after-action review, root cause analysis, regulatory notifications, and control improvements. Many organizations do this poorly — treating the post-incident review as a blame exercise rather than a learning opportunity.

Tabletop Exercises

A tabletop exercise walks your team through a simulated incident scenario to test your plans and identify gaps. Run tabletops at least twice a year. Alternate between technical scenarios (ransomware, data breach) and executive scenarios (board briefing, regulatory notification). The executive scenarios often reveal larger gaps than the technical ones.