Office 365 and Two-Step Login
Frequently Asked Questions (FAQ) about Two-Step Login for Office 365
This article applies to: Two-Step Login
How Will Two-Step Login Work with Office 365?
Two-Step Login for Office 365 is a voluntary (opt-in) service that you can enable at the Manage Your Two-Step Login site.
Can I Choose which Office 365 Applications Use Two-Step Login?
No, once you opt in, Two-Step Login will be required for all Office 365 applications.
Which Clients Can I Use with Office 365 and Two-Step Login?
Two-Step Login for Office 365 works with:
Outlook and other Microsoft Office applications on:
Apple’s Mail and Calendar apps in:
- MacOS 10.14 (Mojave) and later
- iOS 11 and later
- Outlook on the Web (outlook.cornell.edu).
Can I Use Two-Step Login for Office 365 on the Web Only?
No. Limiting Two-Step Login to Office 365 on the web would allow an attacker to bypass Two-Step Login's extra protection simply by using a desktop or mobile client instead of web access.
Two-Step Login for More ADFS Applications
My area has an application that uses ADFS for login. Will my customers who opt in to use Two-Step Login with Office 365 also need to use it with my site? Will this be an option?
Two-Step Login will only apply to Office 365 and not any other service using ADFS. Other applications or websites integrated with the ADFS sign-in page will not be affected. CIT has not determined whether, or when, to extend Two-Step Login to other services using ADFS.