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Securing Office 365 with Defender

8 articles

A complete guide to securing Microsoft Office 365 with Defender, covering anti-phishing, Safe Links, Safe Attachments, email authentication, and essential security hardening settings for administrators and analysts.

Configure Anti-Phishing Policies in Microsoft Defender for Office 365

Enable and Configure Safe Links Policies

Enable and Configure Safe Attachments Policies

Configure Anti-Malware Policies in Microsoft 365

Configure Spoof Intelligence and Anti-Spoofing Protection in Microsoft 365

Enable DKIM for Exchange Online

Using Preset Security Policies in Microsoft Defender for Office 365

Disable Legacy Authentication for Exchange Online

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