Guide

M365 Security Hardening Guide

Twenty Microsoft 365 security settings that should be enabled by default but usually aren't. Step-by-step admin walkthrough with screenshots.

4 pages·PDF, 720 KB·Updated April 2026
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Guide

M365 Security Hardening

20 settings that matter

Inside this document
  • 01Identity & access (Entra)6 settings
  • 02Email & Defender5 settings
  • 03Device compliance (Intune)5 settings
  • 04Data protection (Purview)4 settings
Apr 2026 · v1