03.06.05 — (a) Develop an incident response plan that: (b) Distribute copies of the incident response plan to designated incident response personnel (identified by name and/or by role) and organizational elements. (c) Update the incident response plan to address system and organizational changes or problems encountered during plan implementation, execution, or testing. (d) Protect the incident response plan from unauthorized disclosure.

What this control requires

(a) Develop an incident response plan that: (b) Distribute copies of the incident response plan to designated incident response personnel (identified by name and/or by role) and organizational elements. (c) Update the incident response plan to address system and organizational changes or problems encountered during plan implementation, execution, or testing. (d) Protect the incident response plan from unauthorized disclosure.

Source: NIST SP 800-171 R3 §03.06.05 (official control text).

Why this matters

An incident response plan defines who does what when a security breach, data leak, ransomware attack, or insider threat occurs. Without a documented, tested plan, responders waste critical hours debating roles, notification trees, and containment steps while attackers maintain persistence. This control ensures your organization has written procedures, distributes them to the right people, keeps them current as systems evolve, and restricts access so adversaries cannot study your playbook before attacking. It transforms chaotic firefighting into coordinated defense.

What evidence assessors expect

Assessors typically look for: PDF, screenshot. FORCE coaches you through the exact implementation steps and captures each artifact in-platform.