How to Exploit Azure AD Sign-in Data to Detect Problem Service Principals

Service principal sign-in data from Azure AD is now accessible through a Microsoft Graph API. This means that you can analyze sign-in data to locate problem apps and remove old or unwanted service principals from your Microsoft 365 tenant. It’s time for spring cleaning!

The 1-2-3 of Exchange Online Certificate Based Authentication for PowerShell

Exchange Online PowerShell is a critical automation tool for many Office 365 tenants. In 2021, Microsoft will remove basic authentication for PowerShell, so it’s time to change over to modern authentication. For scripts that run as batch or background jobs, that means converting to certificate-based authentication. In this post, we explore how to get the self-signed cert to glue everything together.