Why Organizations Should Identify CUI Before Mapping Controls
In navigating the complexities of Cybersecurity Maturity Model Certification (CMMC) programs, many organizations instinctively dive into a control spreadsheet, methodically working through the guidelines outlined in NIST SP 800-171. This initial approach seems logical, especially since CMMC Level 2 is tethered to the security requirements defined in NIST SP 800-171 Revision 2. The primary aim of the CMMC program is fundamentally to ensure that contractors, along with their subcontractors, are effectively safeguarding federal contract information (FCI) and controlled unclassified information (CUI).
However, this method can often lead to confusion and misunderstandings within teams. As they sift through controls, questions inevitably surface: "Do we even have this tool in our arsenal?" or "Who is responsible for this particular requirement?" Such inquiries tend to overshadow the more crucial and foundational question: "Where exactly is the CUI located?" This misstep often results in organizations addressing the problem in reverse order.
Experts at Fortra have observed that many organizations encounter stagnation in their CMMC readiness when they approach it merely as a control-mapping exercise instead of a robust data protection initiative. The controls remain significant but gain relevance only after one comprehends the nature and location of what is being secured.
Prominent figures, such as Skip Chapman, a director of government programs at Fortra, emphasize the importance of a data-centered perspective. Chapman asserts, “The better approach is to start with the data, the CUI or FCI, and define and enforce your scope and controls while proving protection continuously. Regulatory requirements can evolve, but the essential principle centers on safeguarding the data. CMMC is fundamentally about the data; compliance hinges on understanding the scope.”
This understanding pivots the starting point from merely jumping into a control checklist to focusing on the data flow—essentially mapping out how data moves throughout the organization. For defense contractors handling CUI, a path forward includes identifying the specifics of where sensitive information resides, how it is transmitted, who interacts with it, and where it should absolutely not be present. Once this landscape is clearly delineated, organizations can actively set the scope, appropriately apply markings to data, enforce requisite controls, and generate evidence that stands up to audits.
The Framework of a Data-First Approach
Implementing a data-first CMMC program necessitates organizations to pose essential questions before any remediation efforts commence. Key inquiries include:
- What specific CUI do we receive, create, process, store, or transmit?
- Where is this CUI currently located?
- How does this CUI transition between users, systems, applications, vendors, and external partners?
- Who has access to this information?
- Where should this CUI never be found?
These pivotal questions help define the actual boundaries of the environment while determining the relevant controls. Additionally, they identify the systems that require assessment, pinpoint which business units should be involved, and clarify what evidence will be necessary later on.
The CMMC Level 2 scoping guidance underlines the significance of understanding the assets that fall within the assessment scope. Regulatory requirements, such as 32 CFR 170.19, mandate that organizations specify their CMMC assessment scope in advance. Consequently, companies must provide more than just network diagrams; they require a credible depiction of CUI movement across their systems.
Adopting a data-first compliance strategy can help organizations sidestep two prevalent and costly pitfalls:
- Overscoping: This occurs when CMMC controls are applied to systems, users, and locations that do not engage with CUI.
- Underscoping: Conversely, this happens when systems or workflows that handle CUI are omitted from the scope.
Overscoping results in a drain on financial resources, while underscoping can engender significant assessment risks. Both mistakes often stem from the premature focus on tools and controls rather than thoroughly understanding data flows.
Addressing the Nature of CUI
Controlled Unclassified Information (CUI) represents sensitive data that, while not classified, requires specific safeguarding and dissemination controls mandated by applicable laws, regulations, or governmental policies. The National Archives maintains a comprehensive CUI Registry, which outlines categories, markings, and control requirements.
Common examples of CUI for defense contractors can include technical data, export-controlled information, engineering drawings, specifications, procurement documents, and various forms of program documentation.
CUI typically does not remain confined to one specific location; it may be dispersed across various platforms including email attachments, collaboration tools, cloud storage, and various file systems. Therefore, organizations face the challenge of accurately identifying where CUI exists to confidently delineate systems within their scope, as well as to substantiate that their security measures are indeed effective.
A Practical CMMC Readiness Approach
Crafting an efficient CMMC readiness program requires a methodical and repeatable data protection lifecycle. It should follow the “Find, Mark, Contain, Enforce, Prove” methodology:
- Find the CUI: Begin by discovering where CUI resides, utilizing a hybrid approach that combines automated tools and human judgment.
- Mark the CUI: Ensure CUI is marked clearly and consistently, employing both visual labels and metadata to communicate handling requirements.
- Contain the CUI: Define controlled environments where CUI can be handled securely, which may involve segmenting workflows or creating dedicated enclaves to isolate sensitive data.
- Enforce the Boundary: Implement controls tailored to the identified risks, incorporating measures such as data loss prevention and encryption.
- Prove Protection Continuously: Establish a continuous monitoring system, ensuring that evidence is generated as part of ongoing operations rather than gathered hastily at audit time.
Conclusion: The Business Context is Crucial
Understanding that CUI traversal spans beyond just the IT department is critical. It flows through various teams including sales, engineering, legal, and procurement. For optimal readiness, involvement from multiple business units at the onset of the process is essential.
The journey towards CMMC compliance isn’t just a technical undertaking; it’s a comprehensive endeavor that demands active participation across the organization. Ignoring the preliminary steps could result in oversights or unnecessary complications, making the identification of CUI the most pivotal first step in achieving CMMC readiness. Organizations looking to streamline their approach can benefit significantly from expert guidance, like that provided by Fortra, which champions viewing CMMC as an integral part of a data protection strategy rather than merely a compliance exercise.