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The process for changing your ONID password if it is known, unknown, or expired.

How to use Duo with an offline cell phone.

Using Duo with a mobile device is the recommended option.

Alternate contact information is used to recover your ONID account when you lose or forget your password.

How to add, remove, reactivate or deactivate Duo devices.

What to do if you forgot your Duo device.

Duo hardware tokens are a good option if you don't have a smartphone, or if you need a second Duo device.

How to replace a phone used for Duo two-step authentication.

How to confirm you are enrolled in Duo two-step login.

Email at OSU

Overview of email configuration and access at OSU.

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