Closing the Gaps: Why Accurate CUI Identification and Continuous Monitoring Are Essential for CMMC Compliance

The House Armed Services Committee’s recent push to amend H.R. 3838 sends a strong message to the Defense Industrial Base (DIB): protecting Controlled Unclassified Information (CUI) isn’t just about checking compliance boxes-it’s a critical piece of national security.

The committee recognizes the value of the Cybersecurity Maturity Model Certification (CMMC) program, which sets standards for securing CUI through strong controls on people, processes, and technology. But it also points out a glaring gap: there’s no mandatory system for continuously monitoring and fixing issues with CUI, especially when it ends up in unapproved places like personal devices or unsecured cloud folders.

The Importance of Knowing Your CUI

The first step to compliance is figuring out where CUI lives-whether it’s in emails, file shares, endpoints, or cloud systems. Without a clear picture, contractors risk failing CMMC audits and, worse, leaving sensitive data vulnerable. The committee makes it plain: relying on manual checks or one-off audits won’t cut it. Contractors need tools that can pinpoint CUI accurately and consistently.

Getting this wrong creates serious problems:

• Missed CUI leaves sensitive data exposed, creating security blind spots.

  
  

• Mislabeling harmless data as CUI wastes time and money by bloating compliance efforts.

Only by nailing CUI identification can contractors focus their efforts where it counts.

The Need for Constant Vigilance

The amendment also underscores a bigger issue: one-time audits don’t keep up with the real world. CUI is always on the move-created, shared, and stored across ever-changing digital environments. Without ongoing oversight, it can easily slip into risky places, like a shared drive or an employee’s personal device, creating compliance headaches and potential data leaks.

CUI Continuous monitoring changes the game by:

• Spotting CUI in unauthorized locations.

  
  

• Alerting teams to fix problems before they turn into violations.

  
  

• Providing proof of compliance with CMMC and DFARS rules.

A Smarter, Risk-Focused Approach

The committee is pushing for a risk-based strategy for managing CUI, which fits with the Department of Defense’s shift toward practical, outcome-driven cybersecurity. For contractors, this means adopting tools and processes that don’t just look good on paper but actually protect sensitive data from real-world threats.

What This Means for Contractors

The takeaway for the DIB is straightforward:

• Identifying CUI accurately is the bedrock of compliance.

  
  

• Continuous monitoring isn’t optional anymore-it’s becoming a must-have.

  
  

• Contractors who stick with outdated methods may face tougher scrutiny from auditors and the Department of Defense.

As compliance expectations grow, defense contractors need to invest in solutions that combine precise CUI identification with constant monitoring to keep data where it belongs.

The Bottom Line

The proposed NDAA amendment signals a shift toward higher standards. Contractors can’t rely on occasional audits anymore. Pairing accurate CUI identification with continuous monitoring is the only way to stay compliant-and keep the sensitive data critical to national defense secure.