03.04.04 — (a) Analyze changes to the system to determine potential security impacts prior to change implementation. (b) Verify that the security requirements for the system continue to be satisfied after the system changes have been implemented.

What this control requires

(a) Analyze changes to the system to determine potential security impacts prior to change implementation. (b) Verify that the security requirements for the system continue to be satisfied after the system changes have been implemented.

Source: NIST SP 800-171 R3 §03.04.04 (official control text).

Why this matters

Change is the enemy of security. Every system modification—whether a software patch, configuration tweak, or infrastructure upgrade—can introduce new vulnerabilities, break existing controls, or create blind spots attackers exploit. Impact analysis ensures you understand what breaks, what's exposed, and what new risks emerge before pushing changes to production. This protects your CUI by preventing well-intentioned updates from accidentally disabling encryption, opening firewall rules, or breaking audit logging. It's the difference between controlled evolution and chaos.

What evidence assessors expect

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

Related controls