How Often Will I Be Prompted to Login to Office 365
How often Office 365 will prompt you to authenticate on Office 365 applications or Outlook on the Web.
This article applies to: Two-Step Login
Office 365 Applications and Mobile Apps
You will rarely, if ever, need to authenticate with Two-Step Login when you use an app on your computer or mobile device to access Office 365. You might be prompted when you install a fresh copy of the software.
Outlook on the Web (outlook.cornell.edu)
You will be prompted to complete Two-Step Login only if you usually sign in to Outlook on the Web. If you have selected Stay Signed In, you will be prompted only when you change to a different browser or device.
Two-Step Login for Office 365
Two-Step Login for Office 365 will not change how often you are prompted to authenticate into Office 365.