Posted 2/14/2024, 5:34:26 PM
Microsoft Enables Added Security Feature in Exchange Server Update, Warns of Potential Compatibility Issues
- Microsoft is enabling Extended Protection (EP) by default in Exchange Server 2019 CU14 to mitigate attacks.
- EP strengthens Windows Server authentication to prevent relay & man-in-the-middle attacks.
- Admins should evaluate environments before enabling EP as it could break functionality.
- A PowerShell script can toggle EP on/off if issues arise after enabling it.
- Microsoft urges customers to keep on-prem Exchange servers updated to deploy emergency security patches.