DoD Security Implementation Guide for M365 Copilot
Step-by-step security configuration guide for deploying M365 Copilot in DoD environments at Impact Level 5, aligned with DISA STIGs and RMF.
Overview
This implementation guide provides detailed, step-by-step security configuration guidance for deploying Microsoft 365 Copilot in Department of Defense environments at Impact Level 5. Aligned with DISA Security Technical Implementation Guides (STIGs) and the Risk Management Framework (RMF).
What’s Included
Chapter 1: Authorization & Compliance
- DoD Provisional Authorization status for M365 services
- Impact Level 5 categorization and data handling requirements
- NIST 800-171 control mappings for Copilot
- RMF package documentation requirements
Chapter 2: Baseline Security Configuration
- DISA STIG compliance settings for M365
- Conditional access policy templates for DoD environments
- Multi-factor authentication requirements and implementation
- Device compliance and endpoint security baselines
Chapter 3: Data Protection Controls
- Sensitivity label taxonomy for DoD classifications
- DLP policy templates for CUI and controlled data
- Information Rights Management (IRM) configuration
- Encryption and key management requirements
Chapter 4: Network Security
- DISN connectivity and routing requirements
- Private endpoint configuration for DoD networks
- Firewall rules and service endpoint allowlists
- Zero-trust network architecture implementation
Chapter 5: Monitoring & Auditing
- Audit log configuration and retention requirements
- SIEM integration for DoD security operations centers
- Alert rules for security-relevant Copilot events
- Continuous monitoring framework for IL5 systems
Chapter 6: Operational Security
- Acceptable use policies for AI-enabled tools
- User training requirements for handling CUI
- Incident response procedures for AI-related events
- Periodic security reviews and assessments
Configuration Examples
This guide includes ready-to-use:
- PowerShell scripts for security baseline deployment
- JSON templates for conditional access policies
- KQL queries for security monitoring and alerting
- Policy documents and acceptable use templates
Target Audience
- DoD IT administrators implementing Copilot
- Security engineers configuring controls
- Authorization officials preparing ATO documentation
- Security operations teams monitoring AI usage
Technical Level
Advanced - Requires knowledge of DoD security frameworks, M365 administration, and IL5 authorization processes.
Companion Resources
- DISA STIG Compliance Matrix (spreadsheet)
- Audit Log Reference Guide
- Network Endpoints List
- Security Monitoring Playbook
Updates
This guide is updated monthly to reflect:
- DISA STIG updates and new requirements
- DoD Cloud Computing SRG revisions
- New M365 Copilot security capabilities
- Lessons learned from DoD implementations
Current Version: 1.4 (October 2024)
Next Update: November 2024
Accessing This Resource
This guide is available to DoD personnel and cleared contractors with appropriate CAC/PIV authentication. Distribution authorized for IL5 systems only.