This Entra ID Conditional Access blog post will show how to block specific countries from logging in to Microsoft 365 apps and services.
Azure AD Conditional Access
Block Legacy Authentication to Office 365 Using Conditional Access Policy
In this blog post, I will show you how to block legacy authentication to Office 365 using Azure Active Directory Conditional Access feature.
View Conditional Access Events in Azure Active Directory
Today, Microsoft Azure Active Directory announced the release of a new reporting feature in Azure AD for Conditional Access.