What is an incident response (IR) playbook?

An incident response playbook is a predefined, ordered set of phases, steps, and tasks — with role owners — that a team follows to handle a specific incident type such as ransomware or business email compromise. It turns the abstract IR plan into concrete, executable actions so the team responds consistently under pressure.

What are the phases of the NIST incident response lifecycle?

Klaxon follows a six-phase model — Detect, Analyze, Contain, Eradicate, Recover, and Post-Incident — aligning the classic NIST SP 800-61 lifecycle (preparation, detection & analysis, containment/eradication/recovery, post-incident activity) into operational stages a team can run step by step.

What's the difference between an IR plan and an IR playbook?

An incident response plan is the overarching policy: roles, severity criteria, communications, and authority. A playbook is the tactical procedure for one incident type. You have one plan and many playbooks. Klaxon ships both — the plan structure plus eight ready-to-run playbooks.

Incident Response Playbook: Templates & the NIST IR Lifecycle (2026)

Q: Why should a playbook include breach-notification triggers?

Because the moment that determines legal exposure — discovery of a reportable breach — happens during the operational response, not after it. Klaxon bakes a 'does this trigger a notification obligation?' check into the playbook steps so the deadline clock starts the instant the facts are known, instead of weeks later when counsel reviews.

What an IR playbook is — and isn't

An incident response playbook is a predefined sequence of phases, steps, and tasks, each with an owner, that your team runs when a specific kind of incident occurs. The plan is the policy (who's in charge, severity levels, communications). The playbook is the procedure for one incident type. You keep one plan and many playbooks — a ransomware playbook reads nothing like a lost-device playbook.

The failure mode for most organizations is a playbook that exists only as a Word document. Klaxon makes the playbook executable: launching it auto-creates the phases and tasks in a live incident, assigns owners, and records every action to an append-only timeline an auditor will accept.

Mapped to the six-phase NIST IR lifecycle

Detect

Analyze

Contain

Eradicate

Recover

Post-Incident

Every Klaxon playbook runs these six phases, aligned to NIST SP 800-61, and maps to NIST CSF Respond/Recover, ISO 27001 A.5.24–A.5.28, SOC 2 CC7.3–CC7.5, the CMMC IR domain, and HIPAA §164.308(a)(6) — so running the playbook also produces the control evidence your framework wants.

Eight ready-to-run playbook templates

Ransomware

Isolate, assess encryption/exfiltration, evaluate the CIRCIA 24-hour ransom-payment report and breach triggers.

Business email compromise

Lock the account, trace the fraud, and check whether exposed mailbox data trips a notification obligation.

Data breach

Scope the affected records and run them straight into the notification engine.

Lost / stolen device

Remote-wipe, assess encryption-as-safe-harbor, and determine PHI/PII exposure.

Account takeover

Revoke sessions, force reset, hunt lateral movement, assess data accessed.

Insider threat

Preserve evidence quietly, coordinate HR/legal, scope exfiltration.

DDoS

Engage mitigation, protect origin, document availability impact.

Third-party / vendor breach

Determine your downstream notification duty when a processor or vendor is breached.

The detail competitors skip: the notification trigger

The moment that sets your legal clock — discovery of a reportable breach — happens inside the operational response. Engineering IR tools record the war-room but never ask the legal question, so the deadline is often noticed weeks late. Klaxon bakes a "does this trigger a notification obligation?" check into the relevant steps, so the instant the facts are known the breach-notification deadline clock starts and the right letters are queued.

Practice the playbook before it's real

A playbook you've never run is a hypothesis. Klaxon's tabletop runner exercises any playbook with timed injects, scores the response against a rubric, and generates an after-action report with assigned action items — software instead of a $5k–$25k consulting engagement.

The incident response playbook,
done right