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Microsoft 365 Governance Checklist

A high-level checklist for establishing a governance baseline across Microsoft Purview, Entra ID, and Intune to secure data, manage identities, and protect endpoints.

Phase 1: Foundational Data Governance (Purview)

Goal: Discover, classify, and protect sensitive data at rest and in transit.

  • Identify and scan critical data repositories (SharePoint, OneDrive, Exchange).
  • Configure and test key Sensitive Information Types (SITs) and trainable classifiers.
  • Create and publish core sensitivity labels (e.g., General, Confidential, Highly Confidential) with content marking and encryption.
  • Deploy a baseline Data Loss Prevention (DLP) policy for a critical workload (e.g., Exchange) to monitor for high-risk sharing.
  • Establish a data classification schema and ownership model.
Phase 2: Identity & Access Governance (Entra ID)

Goal: Enforce least-privilege access and secure authentication.

  • Enforce MFA for all users, with exceptions managed via Conditional Access policies.
  • Implement a baseline set of Conditional Access policies to block legacy auth and require trusted devices for high-risk apps.
  • Configure Privileged Identity Management (PIM) for key Azure and M365 roles (e.g., Global Admin).
  • Conduct a baseline access review for a critical M365 Group or application.
  • Define and document identity lifecycle management processes (Joiner-Mover-Leaver).
Phase 3: Endpoint Management & Security (Intune)

Goal: Ensure all endpoints accessing corporate data are compliant and secure.

  • Enroll all corporate devices (Windows, macOS, iOS/Android) into Intune.
  • Deploy baseline security policies (e.g., password complexity, disk encryption) via Intune Endpoint Security profiles.
  • Configure device compliance policies to measure health and security posture.
  • Integrate Intune with Conditional Access to enforce device compliance for access.
  • Set up Windows Autopilot and/or Apple Business Manager for zero-touch provisioning.