Authentication Method Overview

With the two-factor authentication (2FA) service, faculty, staff, and student employees will be prompted to verify their identity on a second factor that they designate. Depending on the device chosen, they may also select the type of prompt or authentication method they wish to receive. This article covers the types of devices that may be used for this service and the notification options.

Two-Factor Authentication Device Options

The “first factor” in security is your password. “Second factors” are an item in your possession and can be a mobile phone, landline phone, tablet, hardware token, or security key.

Device

Authentication notification options

Platforms supported

Device

Authentication notification options

Platforms supported

Mobile Phones (Smartphones)

Duo Mobile push notification

Duo Mobile passcode

SMS text message

iOS

Android

Mobile Phones (Basic Cell Phones)

SMS text message

Mobile phones with SMS text messaging capability

Mobile Phones / Landlines
(faculty / staff only)

Phone call

All

Tablets

Duo Mobile push notification

Dub Mobile passcode

iOS

Android

Hardware Tokens

Passcode

Please visit Hardware Tokens for the 2FA Service

Security Keys

Popup on computer

Please visit Security Keys for the 2FA Service

Available Authentication Methods 

Duo Mobile App: Duo Push (recommended)

Receive a push notification on your device. Tap Approve to authenticate. Internet or cellular access is required to use this method.

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Available for smartphones and tablets.

Duo Mobile App: Passcode

Go into your Duo Mobile app and tap on the account you are trying to access to get your code. Enter the code into the Duo authentication prompt. The app runs on your device so you do not need cellular or internet access to authenticate.

Available for smartphones, tablets, and hardware tokens.

SMS Text Message

A text message with a seven-digit passcode is sent to your mobile phone. Standard message rates apply.

Available for mobile phones.

Phone Call (Faculty/Staff only)

Receive an automated phone call. Press any key to authenticate.

Available for smartphones, mobile phones, and landlines

Hardware Token / Security Key

Hardware tokens are small devices that generate passcodes to verify your identity in place of a phone. The device will rotate the displayed passcode every few minutes to provide you with a new valid code to use. The battery on this device is rated for a minimum of 2 years.
Security Keys plug into your computer and act as a physical “key” into your accounts.

Learn more: Hardware Tokens for the 2FA Service and Security Keys for the 2FA Service

 

For more information about 2FA and Duo, visit guide.duo.com.

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