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Belton IT Nexus
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Home/ Free downloads/ M365 Security Checklist

Microsoft 365 security checklist.

The hardening controls our senior team applies on real Microsoft 365 tenants, identity first, where most breaches start.

5Control areas
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What's inside
§01

What you get.

5 areas
01

Identity & access

MFA via Conditional Access, block legacy auth, PIM for admins.

02

Email & collaboration

SPF/DKIM/DMARC, Safe Links & Attachments, anti-phishing.

03

Data protection

Sensitivity labels, DLP, scoped external sharing.

04

Devices

Intune compliance, disk encryption enforced.

05

Monitoring & recovery

Audit log, Secure Score, third-party M365 backup.

A general, plain-English resource offered as-is, not a substitute for tailored professional advice. We recommend reviewing it against your own environment.

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