03.01.09 —
What this control requires
Source: NIST SP 800-171 R3 §03.01.09 (official control text).
Why this matters
System use notification ensures that anyone accessing organizational systems receives explicit warning that their activity may be monitored, recorded, and subject to audit. This control establishes legal standing for the organization to take action against unauthorized use or policy violations. It deters malicious insiders and external attackers by making clear that systems are not anonymous playgrounds—users acknowledge they have no expectation of privacy on organizational systems processing CUI. Without these banners, prosecuting misuse becomes legally complicated, and users can claim ignorance of monitoring policies. This is a foundational control that protects both the organization and legitimate users by setting clear behavioral expectations before access is granted.
What evidence assessors expect
Assessors typically look for: screenshot, configuration export, photo. FORCE coaches you through the exact implementation steps and captures each artifact in-platform.
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