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A focused guide series on NIST SP 800-171: what the current and contractual baselines require, how assessment evidence gets tested, how SPRS scoring works, and how to protect Controlled Unclassified Information across your systems.
NIST SP 800-171 is the standard behind DFARS 252.204-7012 and CMMC Level 2. The governing contract and program decide the version. This series helps leaders understand that baseline, scope CUI, sequence the work, test evidence, calculate an honest SPRS score, and keep records current.
Start with the explainer, then use the supporting articles to go deeper on assessment methods, GovCon compliance, system security plans, evidence automation, and AI systems.
Read the Main GuideSeparate the current Revision 3 publications from the Revision 2 baseline used by current CMMC Level 2.
Map every system, cloud service, and provider that stores, processes, or transmits CUI.
Calculate an honest SPRS score and close gaps in weight and dependency order.
Connect records, interviews, and repeatable tests so the SSP, POA&M, and proof stay current.
Featured Guides
Pillar Hub | GovCon Cybersecurity
NIST SP 800-171 is not a certificate or a product. It is the 110 requirements that decide whether you can hold Controlled Unclassified Information. This guide explains the standard, the 14 families, how SPRS scoring works, what Rev 3 changes, and the order to work the controls in.
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Supporting Guide | Cybersecurity
NIST 800-171 Rev 3 is not a shorter copy of Rev 2. It changes the structure, adds organization defined parameters, moves outcomes, and creates new evidence decisions. This guide uses the official NIST change analysis to show where the transition work sits and how to sequence it.
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Supporting Guide | Cybersecurity
NIST 800-171 Access Control is not an identity tool setting. It is a connected operating system for accounts, authorization, privilege, sessions, remote paths, devices, external systems, and public release. This guide shows what to decide, enforce, review, test, and preserve.
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Supporting Guide | Cybersecurity
NIST 800-171 incident response is not an emergency document. It is a working command process for detection, analysis, containment, reporting, preservation, recovery, training, testing, and evidence. This guide turns the requirements into an operating system.
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Supporting Guide | GovCon Cybersecurity
An SPRS score is not a compliance grade. It is a weighted snapshot of one covered system. Learn the official calculation, the failure modes that distort it, and a practical path to improve the number and the proof behind it.
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Supporting Guide | GovCon Cybersecurity
NIST SP 800-171A is not an artifact checklist. It is a procedure for testing security claims through records, operator knowledge, and system behavior. This guide shows how to prepare evidence that holds together.
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Supporting Guide | GovCon Cybersecurity
A NIST SSP is the map an assessor uses to test your boundary and control claims. This guide shows how to build the plan from data flows, architecture, implementation statements, ownership, and evidence.
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Supporting Guide | Cybersecurity Compliance
A practical leadership guide to NIST SP 800-171 compliance, CUI protection, CMMC Level 2 readiness, SPRS, SSPs, cloud tools, AI risk, and continuous GovCon cybersecurity.
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Supporting Guide | Enterprise AI
A practical guide for IT leaders and compliance officers building secure workflows for NIST 800 171 evidence collection, automated CMMC evidence gathering, and continuous NIST monitoring.
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Supporting Guide | Secure AI Automation
A practical guide for GovCon CISOs and compliance leaders mapping AI agents, RAG, model gateways, connectors, logs, and workflow actions into the NIST SP 800-171 SSP.
Read articleGS Consulting helps DoD and federal contractors scope CUI, assess against all 110 requirements, improve SPRS scores, build SSPs and POA&Ms, and automate the evidence that proves readiness.
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