Protecting Controlled Unclassified Information starts with understanding where it is handled and how the supporting systems are secured. Your team then needs to identify weaknesses, decide what matters most and show that the improvements have worked.
CUI is defined as “sensitive, unclassified information created or possessed by the U.S. federal government—or on its behalf—that requires safeguarding or dissemination controls according to laws, regulations, or government-wide policies”
SecureX7 helps with the technical assessment and remediation work. Build visibility of supported assets, investigate configuration findings and use AI-assisted Work Plans to plan changes. Reporting provides technical evidence for your wider readiness and assessment activities.
Confirm the requirements that apply to your environment
NIST SP 800-171 Revision 3 addresses the confidentiality of CUI in nonfederal systems and organisations. Its requirements apply to components that process, store or transmit CUI and components that protect them. SP 800-171A Revision 3 provides assessment procedures.
This page is for suppliers, contractors and other organisations implementing applicable CUI protection requirements. Confirm the publication and revision required by your agreement or assessment programme. The latest NIST revision does not automatically change the version you are required to use.
Establish scope before measuring readiness
SX7 asset discovery and classification support investigation of the technical estate. Your organisation determines CUI applicability and approves the system boundary. An asset inventory is useful evidence for that decision, but it does not identify every CUI location or establish scope by itself.
Understand CUI and system scope
Investigate technical weaknesses before the assessment deadline
Compare supported configurations with the approved requirements for each system role. Review unnecessary services, account privileges and other relevant weaknesses. Prioritise remediation according to the affected system, exposure and business dependencies.
Use SX7 findings to focus investigation. Its AI assistant helps explain a technical issue and provides guidance your administrators can evaluate. Work Plans support planning the changes, while your change process governs testing, approval and deployment.
See a practical remediation workflow
Suppose a workstation supporting CUI access has a configuration outside the approved build. The administrator reviews the SX7 finding, confirms the business need and tests the recommended setting with the applications involved.
After approval and deployment, reassessment checks the resulting configuration. Retain that result with the change evidence and relevant implementation records. It supports a defined technical assessment question; the requirement owner considers any further evidence needed.
Keep implementation records aligned with the live estate
SX7 findings and reporting can support those records with technical information. Policy decisions, staff training, physical protection and other organisational activities require their own implementation and evidence. Assessment conclusions remain with the responsible assessors and decision makers.
Explore coverage for your NIST 800-171 project
Bring your applicable revision, system types and technical priorities to a demonstration. Examine the relevant SX7 checks and see how findings, AI guidance and reassessment can support your readiness work.