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 |
|---|---|---|
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 | Phone call | All |
Duo Mobile push notification Dub Mobile passcode | iOS Android | |
Passcode | Please visit Hardware Tokens for the 2FA Service | |
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.
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.