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Use Yale's Multifactor Authentication (MFA) Service 

Important announcement about using Yale's MFA when traveling: 

You must DUO-authenticate to access any CAS-protected or VPN-protected application from off-campus. This includes Microsoft Office 365 (e.g Outlook, Teams, OneDrive). 

As of March 2022, DUO is blocking access to its services from sanctioned countries. These countries are regularly updated and explained on DUO's Knowledge Article. If you are traveling to an affected country, you will be unable to access most of Yale's online services.

Please see the University statement on Yale's U.S. Sanction and Embargo programs for more details. 

View Yale's Sanction and Embargo statement 

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You must DUO-authenticate to access any CAS-protected or VPN-protected application from off-campus.

DUO Everywhere extends DUO authentication to Microsoft Office 365 (e.g. Outlook, Teams, OneDrive) and CAS logins on and off campus. 

Get Started

If you use applications protected by CAS or VPN off-campus, you are already enrolled in DUO MFA.

Register your device:

Manage your Devices

All my devices are in DUO—now what?

What should I do before travel?

  • Prior to travel or work, you can obtain 10 backup codes to use when you do not have access to your authentication device. Get backup codes here

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