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Enforce DUO for all users in AD for Office 365

Date(s): March 2, 2021 from 9 - 930am


Services Affected:

Beginning on March 2, 2021, Duo multi-factor authentication will be required for all UCI Office 365 accounts. Using Duo will strengthen security when accessing your UCI Outlook, Calendar, OneDrive, Teams, and other O365 services.

We are encouraging all UCI Office 365 users (staff, faculty and student employees) to opt-in to Duo for O365 now, so that we can address issues before it may impact your work.

Here's what to do now:

Enable Duo for O365 before March 2, 2021:
Login, select "Enable" and submit. You may need to login again to any existing O365 sessions.

If you run into any issues, you can go back to the link above, select "Disable" and report it to the OIT Help Desk at or 949-824-2222.
*iOS users may need to remove and re-add their accounts. See note below for details
More Details:

The Office of Information Technology (OIT) has been working to roll out Duo multi-factor authentication across all campus platforms with the ultimate goal of having all employees and students using Duo to protect our most used platforms by the end of 2021. Duo provides an added layer of security by requiring a second source of validation, in the form of a push notification on your phone, tablet or smart watch, in addition to your username and password. Multi-factor authentication with Duo is already required for employees to access most other key UCI platforms. Learn more about Duo...

What should you expect?

Desktops and laptops
Before March 2, ensure you are using compatible software to access O365 by reviewing: If you are using different software, it likely doesn't support modern authentication and you will need to move to something supported.
On March 2, O365 services will ask you to re-authenticate (login with your username and password). When you login, you will be prompted to authenticate with Duo.

Apple/iOS devices
If you encounter an issue with using Duo on the native Apple mail app, you may need to remove and re-add your Office 365 accounts. Instructions here:
Alternatively, we recommend that you download the Outlook Mobile app to use instead of using the iOS Mail app.
If you have any issues or feedback, contact the OIT Help Desk at or 949-824-2222.

Service Maintenance Status: Resolved


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