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Microsoft 365 Security Configuration Print

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Protecting the tenant.

WHAT TO ENABLE FIRST

Multi-factor authentication for every account.

WHY

It prevents the large majority of account compromises.

WHAT TO ENABLE FOR ADMINISTRATORS SPECIFICALLY

Stronger requirements, and separate accounts from daily use.

WHY SEPARATE ACCOUNTS

So an administrative account is not exposed to browsing and email.

WHAT TO CONFIGURE

Policies controlling under what conditions sign-in is permitted Restrictions on legacy authentication methods that bypass modern protection Protection against malicious links and attachments Alerting on suspicious activity

WHY LEGACY AUTHENTICATION MATTERS

Older protocols do not support additional factors, and are used precisely for that reason.

WHAT TO REVIEW

Which applications have been granted access to organisational data Administrative role assignments Guest accounts

WHY THAT FIRST ONE

Users can consent to applications accessing data, and malicious applications exploit this.

WHAT TO RESTRICT

User consent, to verified applications or to none.

WHAT TO MONITOR

Sign-in activity Mailbox rule creation Mass file downloads

WHAT TO PREPARE

A response procedure for a compromised account.


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