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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, or hardware token, or security key.

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 

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Receive a push notification on your device. Tap Approve to authenticateEnter the number displayed from the login prompt on your device. Internet or cellular access is required to use this method.

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

Available for mobile phones. Most international calling codes are supported.

Phone Call (Faculty/Staff only)

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

Available for smartphones, mobile phones, and landlines. Most international calling codes are supported.

Hardware Token / Security Key

Hardware tokens are small devices that generate passcodes that 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

Phone Call (Faculty/Staff only)

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

Available for smartphones, mobile phones, and landlines

Info

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

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