MS 365 - Block IP Ranges of VPN Services

Richard Long 301 Reputation points

I'd like to know if it's possible to dynamically block Azure AD authentication attempts from IP ranges used by services like ExpressVPN. Has anyone tried this before?


Microsoft Defender for Cloud
Microsoft Defender for Cloud
An Azure service that provides threat protection for workloads running in Azure, on-premises, and in other clouds. Previously known as Azure Security Center and Azure Defender.
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Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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