--- title: What You Need to Know About NIST 800-171: The Government Framework for Protecting Controlled Unclassified Information (CUI) description: Learn what NIST 800-171 means for your organization in 2025. Understand key controls, updates, and how to protect CUI while meeting compliance requirements. image: https://www.ineteng.com/hubfs/2025%20What%20You%20Need%20to%20Know%20About%20NIST%20800-171%20.png --- [Skip to main content](https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information#maincontent) - Categories ** - Follow Us ** - ** - [**](https://www.facebook.com/internetworkengineering) - [**](https://twitter.com/InetEng) - [**](https://www.linkedin.com/company/internetwork-engineering) [«  View All Posts](https://www.ineteng.com/blog) ![What You Need to Know About NIST 800-171: The Government Framework for Protecting Controlled Unclassified Information (CUI)](https://www.ineteng.com/hubfs/2025%20What%20You%20Need%20to%20Know%20About%20NIST%20800-171%20.png) ![Blog Feature](https://cdn2.hubspot.net/hubfs/298890/blog-files/blog--cards-feature.png) ![Desirée M. Ericksen, CISSP](https://www.ineteng.com/hubfs/Desiree.jpeg "Desirée M. Ericksen, CISSP") By: [Desirée M. Ericksen, CISSP](https://www.ineteng.com/blog/author/desirée-ericksen) on June 10th, 2025 ** Print/Save as PDF # What You Need to Know About NIST 800-171: The Government Framework for Protecting Controlled Unclassified Information (CUI) [IT Consulting](https://www.ineteng.com/blog/topic/it-consulting) - Share: - [**](https://www.facebook.com/sharer/sharer.php?u=https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information) - [**](https://twitter.com/intent/tweet?text=What+You+Need+to+Know+About+NIST+800-171%3A%C2%A0The+Government+Framework+for+Protecting+Controlled+Unclassified+Information+%28CUI%29&url=https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information&via=) - [**](https://www.linkedin.com/shareArticle?url=https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information&title=What+You+Need+to+Know+About+NIST+800-171%3A%C2%A0The+Government+Framework+for+Protecting+Controlled+Unclassified+Information+%28CUI%29&summary=Learn+what+NIST+800-171+means+for+your+organization+in+2025.+Understand+key+controls%2C+updates%2C+and+how+to+protect+CUI+while+meeting+compliance+requirements.+) - [**](mailto:?body=https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information) If your organization works with the federal government—or even just partners with a federal contractor—chances are you’ve encountered the term **NIST 800-171**. But what is it exactly, why does it matter in 2025, and what should you be doing now to align with it?  At Internetwork Engineering , a Presidio company, we work with IT managers and CISOs who navigate this framework daily—especially those responsible for protecting **Controlled Unclassified Information (CUI)**. Whether you’re pursuing a Department of Defense (DoD) contract or supporting a federal partner, NIST 800-171 compliance is more than a checkbox—it’s a strategic requirement.  ## **What Is NIST 800-171?**  Published by the **National Institute of Standards and Technology (NIST)**, **Special Publication 800-171** outlines security requirements for **non-federal systems** that store, process, or transmit CUI.  In simple terms: if your organization handles sensitive but unclassified federal data, **you must meet these controls** to stay compliant.  ## **Who Needs to Comply?**  You must comply with NIST 800-171 if your organization:  - Is a **prime or subcontractor** on a federal contract - Supports a federal agency or DoD partner with access to CUI - Handles CUI as part of your service or product delivery  Compliance is often a **contractual requirement**, and failure to meet it could result in disqualification from bidding or loss of current contracts.  ## **Key Areas of the NIST 800-171 Framework**  The framework includes **110 controls** grouped into **14 control families**. Here are some of the most critical domains CISOs and IT leaders should focus on:  ## **Access Control**  Limit access to systems and data based on role and necessity. This includes implementing **multi-factor authentication (MFA)** and restricting privilege escalation.  ## **Audit & Accountability**  Generate logs and monitor access to systems handling CUI. Logs must be **protected, retained**, and reviewed regularly to identify potential incidents.  ## **Configuration Management**  Establish and enforce secure system configurations. Prevent unauthorized changes and ensure patch management processes are in place.  ## **Incident Response**  Develop and test your incident response plan. You must detect, report, and respond to security events involving CUI.  [![CONSIDER A SECURITY RISK ASSESSMENT ](https://no-cache.hubspot.com/cta/default/2314769/8ed25026-5659-4afd-8177-abe1e96d7749.png)](https://cta-redirect.hubspot.com/cta/redirect/2314769/8ed25026-5659-4afd-8177-abe1e96d7749) ## **System & Communications Protection**  Encrypt CUI in transit and at rest. Secure communication channels and limit unnecessary data exposure.  **Pro tip**: Don’t treat all 110 controls equally. Focus first on the “CMMC Level 2- aligned” subset if you’re preparing for CMMC 2.0 certification.  [![REQUEST A CMMC READINESS ASSESSMENT](https://no-cache.hubspot.com/cta/default/2314769/bb3d7e10-46ac-4e07-923c-3cf44b3404ad.png)](https://cta-redirect.hubspot.com/cta/redirect/2314769/bb3d7e10-46ac-4e07-923c-3cf44b3404ad) ## **NIST 800-171 in 2025: What’s New?**  As of 2025, here are key updates and implications that organizations must be aware of: **1. CMMC 2.0 Alignment** CMMC 2.0 now maps directly to NIST 800-171. If you're aiming for **CMMC Level 2**, you must implement and document **all 110 NIST 800-171 controls**.  **Reminder**: The DoD is expected to start including CMMC 2.0 requirements in contracts in 2025. The clock is ticking. **2. Increased Enforcement via SPRS** Federal agencies are increasingly using the **Supplier Performance Risk System (SPRS)** to track self-assessments and scores. Low scores may flag you for contract reviews or exclusions. **3. Third-Party Validation** While self-assessments were once acceptable, organizations working with more sensitive CUI or under DoD contracts may require **independent assessments** to verify implementation.  ## **What Happens If You’re Not Compliant?**  Failing to meet NIST 800-171 puts your contracts—and your reputation—at risk.  - You could be **disqualified from new opportunities**** beginning in July 2026** - **You may lose the opportunity to renew existing contracts beginning July 2027** - **You may face **contract termination or legal scrutiny**** - You expose yourself to **data breach risks and loss of trust**  That’s why NIST 800-171 should be viewed as part of your broader **risk management and cybersecurity strategy**—not just a compliance checklist.  ## **How Internetwork Engineering (IE), a Presidio company, Can Help**  At IE, we’ve helped organizations of all sizes build, document, and implement NIST 800-171-aligned security programs. Our approach is **practical, tailored, and scalable built** to help you protect CUI while keeping your operations running smoothly.  Here’s how we support our clients:  ## **Gap Assessments**  We evaluate your current cybersecurity posture against the 14 control families to pinpoint compliance gaps.  ## **Remediation Roadmaps**  We provide a prioritized action plan to implement necessary controls efficiently based on your risk, budget, and contract timelines.  ## **Technology Implementation**  We help integrate critical controls like **multi-factor authentication**, endpoint protection, logging, and secure configurations—using tools like **Duo and SentinelOne.**  ## **Policy and Documentation Support**  Compliance isn’t just about tools. We help build the documentation needed for audits and RPO (Registered Practitioner Organization) verification.  ## **Final Thoughts: Start Now—Before It's Required**  NIST 800-171 compliance isn’t just a requirement—it’s a strategic necessity for protecting your place in the federal ecosystem.   **Note: **We anticipate that in July 2025, the 48 CFR rule will be released, along with Phase 1, which will require self-assessment scores to be submitted to SPRS.  And while 110 controls may seem daunting, the right partner can help you break the process down, focus on priorities, and **build a defensible, resilient cybersecurity program**.  **Whether you’re starting your compliance journey or preparing for a CMMC audit, Internetwork Engineering, a Presidio company, is here to help.**  ## **Ready to assess your NIST 800-171 readiness?**  Contact Internetwork Engineering, a Presidio company, today to schedule a gap assessment or compliance consultation.  [![CONTACT IE TO SCHEDULE A RISK ASSESSMENT OR COMPLIANCE CONSULTATION](https://no-cache.hubspot.com/cta/default/2314769/77db7363-07f5-4844-87b5-96bea5510715.png)](https://cta-redirect.hubspot.com/cta/redirect/2314769/77db7363-07f5-4844-87b5-96bea5510715) - [**](https://www.facebook.com/sharer/sharer.php?u=https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information) - [**](https://twitter.com/intent/tweet?text=What+You+Need+to+Know+About+NIST+800-171%3A%C2%A0The+Government+Framework+for+Protecting+Controlled+Unclassified+Information+%28CUI%29&url=https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information&via=) - [**](https://www.linkedin.com/shareArticle?url=https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information&title=What+You+Need+to+Know+About+NIST+800-171%3A%C2%A0The+Government+Framework+for+Protecting+Controlled+Unclassified+Information+%28CUI%29&summary=Learn+what+NIST+800-171+means+for+your+organization+in+2025.+Understand+key+controls%2C+updates%2C+and+how+to+protect+CUI+while+meeting+compliance+requirements.+) - [**](mailto:?body=https://www.ineteng.com/blog/what-you-need-to-know-about-nist-800-171-the-government-framework-for-protecting-controlled-unclassified-information)