Are there any data loss prevention software platforms that help detect insider risk while protecting controlled unclassified information?

Yes. There are DLP and insider-risk platforms that are commonly used to help detect insider risk while protecting Controlled Unclassified Information (CUI). In practice, organizations often pair Data Loss Prevention (DLP) with Insider Risk Management (IRM/UEBA) and information protection controls.

Examples of platforms often used for this include:

• Microsoft Purview
  • DLP for endpoints, email, cloud apps
  • Insider Risk Management for suspicious user behavior
  • Information protection / sensitivity labels for CUI
• Symantec DLP / Broadcom
  • Strong content inspection and policy enforcement
  • Can help monitor and block CUI exfiltration paths
• Forcepoint DLP
  • Behavioral and content-aware DLP
  • Often used for insider-threat-style monitoring
• Proofpoint Information Protection / Insider Threat
  • Email, cloud, and user behavior monitoring
  • Detection of risky data movement
• Trellix DLP
  • Endpoint and network DLP capabilities
  • Can be tuned for CUI handling
• Varonis
  • Strong for data visibility, permissions, and insider-risk detection
  • Helps identify overexposed sensitive data and unusual access
• Code42 Incydr
  • Focuses on insider risk and data movement monitoring
  • Useful for detecting risky exfiltration behavior
• Netskope
  • Cloud app/SaaS visibility and DLP
  • Helps control CUI in cloud environments

For CUI specifically, you’d typically want features like:

• content classification and labeling
• endpoint, email, web, and cloud app monitoring
• user behavior analytics
• alerts for unusual access, copying, printing, uploading, or external sharing
• policy enforcement aligned to NIST SP 800-171 and/or CMMC requirements

If you want, I can also give you:

1. a shortlist of platforms best suited for CUI,
2. a comparison table, or
3. recommendations based on whether you need cloud, endpoint, or on-premises coverage.