What a runbook is for
An incident response runbook turns a stressful, ambiguous situation into a checklist. This tutorial builds a minimal first runbook covering detection, containment, and recovery — the same structure taught in the Cybersecurity Fundamentals course’s Incident Response module.
Step 1: Define your trigger conditions
Start by listing the alerts that should open an incident: a critical finding from Attack Surface Monitoring, a SIEM correlation rule firing, or a report from an employee. Vague triggers (‘something looks wrong’) lead to delayed response.
Step 2: Write the containment steps
For each likely scenario — compromised credentials, exposed service, malware on an endpoint — document the exact containment action: disable the account, take the service offline, isolate the host from the network. Assign an owner to each action, not just a team.
Step 3: Plan recovery and evidence handling
- Snapshot or image affected systems before remediating
- Document a timeline as you go, not after
- Define what “resolved” means before you start, so you know when to close the incident
- Schedule a blameless review within a week of closure
Step 4: Rehearse it
A runbook that has never been rehearsed is a draft. Walk through it as a tabletop exercise with your team once it’s written, using a realistic scenario relevant to your environment.