CMMC Ready — CMMC Level 2
84% NIST 800-171 coverage. 2 control gaps identified.
CMMC Status
CMMC Ready
Target Level
Level 2
NIST Coverage
84%
Virtru Email Encryption
by Virtru
Overview
Virtru Email Encryption by Virtru is an email & messaging solution with FedRAMP authorization targeting CMMC Level 2 compliance. It provides 84% coverage of NIST 800-171 controls for defense contractors handling CUI.
What This Means for Defense Contractors
Virtru Email Encryption meets the architectural requirements for CMMC Level 2. However, CMMC compliance depends on your entire system boundary — not just individual tools. There are 2 NIST 800-171 control gaps that need remediation before assessment. Defense contractors using Virtru Email Encryption should verify that their System Security Plan (SSP) documents how this tool fits within their authorization boundary.
NIST 800-171 Coverage
Control Gaps
Using Virtru Email Encryption without addressing these NIST 800-171 controls may result in findings during a CMMC assessment:
Strengths
Using Virtru Email Encryption in a CMMC Environment
For defense contractors already using Virtru Email Encryption, the path to CMMC compliance involves documenting the tool in your System Security Plan (SSP), ensuring proper access controls are configured, and validating that Virtru Email Encryption's security controls align with your authorization boundary. With 84% NIST 800-171 coverage, Virtru Email Encryption provides a strong compliance foundation, though the 2 remaining control gaps will need compensating controls or supplementary tools.
CMMC-Ready Email & Messaging Alternatives
CMMC Compliance Analysis for Virtru Email Encryption
Virtru Email Encryption demonstrates strong CMMC Level 2 readiness with 84% NIST 800-171 coverage and FedRAMP authorization, making it suitable for defense contractor CUI workflows. The platform excels in System and Communications Protection (SC) and Identification and Authentication (IA) control families through end-to-end encryption, automated key management, and granular access controls. Its DoD SRG IL4/IL5 support and dedicated government data centers address System and Information Integrity (SI) requirements effectively. However, gaps in controls 3.13.1 (access control policy enforcement) and 3.13.8 (information flow enforcement) present challenges in Access Control (AC) and System and Communications Protection domains. During a C3PAO assessment, evaluators will scrutinize Virtru's boundary protection capabilities and verify that encrypted email flows don't bypass organizational access control policies. The tool can exist within a CMMC authorization boundary as it processes CUI through encrypted channels with proper data loss prevention integration. Compared to competitors like Microsoft Purview or Proofpoint, Virtru's government-focused architecture and FedRAMP authorization provide advantages, though solutions like Zix Government Email offer similar compliance postures with potentially better access control integration. The platform's continuous monitoring capabilities and automated compliance reporting significantly reduce ISSO burden during assessment preparation, though compensating controls will be required for the identified gaps.
Configuration Guide
Configure Virtru Email Encryption for CMMC compliance by implementing policy-based encryption rules that enforce organizational access controls (addressing 3.13.1 gap). Enable data classification integration with Microsoft Information Protection or similar tools to ensure proper CUI labeling triggers appropriate encryption policies. Document compensating controls in the SSP for information flow enforcement (3.13.8), specifically detailing how Virtru's encryption boundaries align with organizational security architecture. Implement centralized key management through Virtru's Control Center with role-based access controls and audit logging. Configure automated DLP policies to prevent unauthorized CUI transmission and integrate with existing SIEM solutions for continuous monitoring. Enable advanced threat protection features and establish incident response procedures for encryption key compromise scenarios. Timeline estimate: 4-6 weeks for initial configuration, 2-3 weeks for policy refinement and testing. Maintain compliance through monthly policy reviews, quarterly key rotation audits, and continuous monitoring of encryption policy violations. Prepare evidence including encryption policy documentation, access control matrices, audit logs demonstrating policy enforcement, DLP incident reports, and key management procedures. Document all configuration baselines and change management procedures to demonstrate continuous compliance posture to C3PAO assessors.
Configuration Checklist
- 1ISSO: Configure policy-based encryption rules in Virtru Control Center to enforce organizational CUI access controls per NIST 800-171 3.13.1
- 2Sysadmin: Integrate Virtru with Microsoft Information Protection or equivalent data classification system for automated CUI labeling
- 3ISSO: Document compensating controls in SSP Section 3.13.8 detailing encryption boundary alignment with information flow policies
- 4Sysadmin: Enable centralized key management with role-based access controls and configure audit logging for all key operations
- 5ISSO: Implement DLP policies preventing unauthorized CUI transmission and establish SIEM integration for SC control family monitoring
- 6Sysadmin: Configure advanced threat protection features and establish incident response procedures for key compromise scenarios
- 7ISSO: Create monthly policy review procedures and quarterly key rotation audit schedules for continuous compliance maintenance
- 8C3PAO: Validate encryption policy documentation, access control matrices, and audit logs demonstrate effective control implementation
- 9ISSO: Prepare evidence package including policy baselines, DLP incident reports, and change management documentation for assessment
- 10Contracts: Ensure Virtru service agreements include CMMC compliance clauses and incident notification requirements per DFARS 252.204-7012
Related Compliance Assessments
Frequently Asked Questions
Is Virtru Email Encryption CMMC compliant?
Virtru Email Encryption meets CMMC Level 2 requirements with 84% NIST 800-171 control coverage.
What NIST 800-171 controls does Virtru Email Encryption cover?
Virtru Email Encryption covers 84% of the 110 NIST 800-171 controls, with 2 gaps primarily in 3.13.1 and 3.13.8 control families.
What are the CMMC compliance gaps for Virtru Email Encryption?
The primary gaps are in controls 3.13.1, 3.13.8. These require supplementary tools or process controls to achieve full CMMC Level 2 compliance.
Check Your Full Tech Stack
See CMMC readiness scores for 80+ enterprise vendors.
Open CMMC Readiness CheckTurn this gap analysis into a remediation plan
This Virtru Email Encryption readiness check is the start, not the answer. Book a 25-minute compliance assessment — you leave with a prioritized roadmap and a fixed-fee implementation quote.
Book a 25-min assessmentRelated: how much CMMC certification costs — DoD’s own priced figures