CUI Compliant

0 NIST 800-171 gaps detected. FedRAMP High in GCC High. Built into M365 GCC High. Automatic CUI classification and protection. Natural DLP choice for Microsoft government ecosystem.

Data Loss Prevention

Microsoft Purview DLP (GCC High)

Name: Microsoft Purview DLP (GCC High)
Author: Microsoft

by Microsoft

FedRAMP AuthorizedHigh Impact

FedRAMP Status

FedRAMP Authorized

Impact Level

High

Overview

Microsoft Purview DLP is built into Microsoft 365 GCC High and provides automatic CUI classification, labeling, and protection. It monitors email, SharePoint, OneDrive, Teams, and endpoints for CUI, applying policies to prevent unauthorized sharing. The natural DLP choice for contractors already in the Microsoft government ecosystem.

CUI Risk Assessment

FedRAMP High in GCC High. Built into M365 GCC High. Automatic CUI classification and protection. Natural DLP choice for Microsoft government ecosystem.

Deployment & Architecture

Deployment Model: Government Cloud (FedRAMP boundary)

Microsoft Purview DLP (GCC High) operates within a FedRAMP-authorized boundary. CUI can be processed within the authorization scope, but contractors must verify their specific use case falls within the system's security boundary as documented in the SSP.

Configuration Checklist

1ISSO must conduct CUI inventory assessment documenting all contract-specific data types requiring protection per DFARS 252.204-7012 requirements.
2Sysadmin configures sensitivity label taxonomy in Microsoft Purview portal aligned with organizational CUI categories and ITAR classification levels.
3ISSO develops DLP policy matrix mapping sensitivity labels to protection actions (block, audit, encrypt) based on NIST 800-171 SC-8 requirements.
4Sysadmin implements endpoint DLP policies across Windows devices ensuring coverage of local file systems and removable media per NIST 800-171 MP-7.
5ISSO validates DLP rule effectiveness through controlled testing using sample CUI documents and email scenarios.
6Sysadmin configures audit logging to capture all DLP policy violations and forwards logs to SIEM for NIST 800-171 AU-6 compliance.
7ISSO updates System Security Plan documenting Purview DLP as primary data protection control addressing NIST 800-171 SC-28 requirements.
8Legal counsel reviews DLP policies ensuring alignment with contract data handling requirements and export control obligations.
9ISSO conducts user training on sensitivity labeling workflows and DLP alert response procedures for CUI handling compliance.
10Contracts officer validates DLP implementation meets specific contract CUI protection requirements before system authorization.

Other FedRAMP Authorized Data Loss Prevention Tools

Forcepoint DLP

Forcepoint

Related Compliance Assessments

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FedRAMP: HIGH authorized

Microsoft Azure Government authorization details & procurement guide

Frequently Asked Questions

Is Purview DLP included with GCC High?

Purview DLP capabilities are included in M365 GCC High E5 licenses or as add-on compliance licenses. It provides integrated DLP across email, files, chat, and endpoints.

Does Purview DLP work with CUI markings?

Yes. Purview DLP can automatically detect CUI markings, sensitive information types, and classification labels to enforce protection policies and prevent unauthorized sharing.

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This Microsoft Purview DLP (GCC High) CUI review flags the gaps. The next step is a compliance architecture review where we map your data flows to FedRAMP-authorized alternatives and CMMC-aligned controls.

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