How to block malicious emails with spoofed display names impersonating internal company's department email addresses (XYZ HR Department) coming from an external email address in Microsoft 365 Exchange/Defender?

• orca

  7 272 7.9 PowerShell

  The Microsoft Defender for Office 365 Recommended Configuration Analyzer (ORCA) (by cammurray)

I highly recommend reviewing this if you haven't already: https://techcommunity.microsoft.com/t5/microsoft-defender-for-office/email-protection-basics-in-microsoft-365-spoof-and-impersonation/ba-p/3562938. If you have all of the Impersonation features enabled, you can greatly reduce the risk of future impersonation emails getting through. You can quickly run the ORCA or the Configuration Analyzer tool in Defender to see if you're behind on best practices. I've seen this work very well in orgs that were previously big red targets for BEC.

• InfluxDB

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