PowerShell functions for securely storing and using credentials that can be easily re-used for authentication in scripts and scheduled tasks.
Exchange Best Practices: Least Privilege Administrative Rights
When it comes to Exchange Server the the principle of least privilege applies, and is considered a best practice.
Microsoft 365 Administration Portals and PowerShell Connections
An overview of the different web-based administration portals and PowerShell connection methods for administering Microsoft 365 services.