Protects incoming mail in Microsoft 365 with spoof intelligence; with Defender for Office 365 it also offers impersonation protection plus adjustable phishing thresholds.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains Anti-phishing policy in context, with comparison tables and the common traps.
Terms in this definition
- Microsoft 365
Formerly Office 365, Microsoft's software-as-a-service productivity suite. A Microsoft Entra tenant provides its identity, and its data is not governed by Azure RBAC.
- Impersonation protection
Guards against senders posing as known people or domains using lookalikes, and draws on mailbox intelligence. Part of anti-phishing in Defender for Office 365, it isn't enabled in the default policy.
Related terms
- First contact safety tip
An anti-phishing policy option that shows recipients a warning when a message comes from someone they rarely or never get email from.