Microsoft 365 Security Settings Every Admin Should Enable

You're paying for M365 security features that are probably turned off. Here are the settings that make the biggest difference.

Elevate Solutions

April 19, 2026 · 7 min read

You already paid for this

Most M365 security capability ships disabled or under-configured. If you have Business Premium or E3/E5, you're leaving protection on the table.

Turn these on first

Security defaults or Conditional Access — enforce MFA and block legacy authentication
Anti-phishing and Safe Links/Safe Attachments in Defender for Office 365
Audit logging (on by default now, but verify retention)
Self-service password reset with MFA
DKIM and DMARC on your sending domain

Don't stop at the toggle

Enabling a feature isn't the same as tuning it. Conditional Access in particular rewards careful policy design. If you'd like a second set of eyes, we review M365 tenants routinely.

Elevate Solutions

Security & IT Advisory Team

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