Understanding SharePoint Online Authentication

Office 365 and SharePoint Online serve a wide spectrum of customers with diverse usability and security needs. There are customers who don't mind numerous authentication prompts if it ultimately means their data will be secure on the other hand there are other customers who despise the sight of a login prompt.

How to Control Access to SharePoint Content from Unmanaged Devices?

SharePoint or global admin in Office 365 can now block or limit access to SharePoint and OneDrive content from unmanaged devices.