IT Services

Choosing your 2-factor device

There are a range of 2-factor device options to choose from, but the easiest way to authenticate is by using your mobile phone.

Mobile phone

This is the preferred option and supports both smartphones and basic mobile phones. Smartphone users can use the Duo Mobile app to receive a simple push notification (allowing you to respond with a simple tap) or generate a passcode. You can also choose to verify your identity by receiving a phone call, or a passcode via text message - which will work on all phones.

As part of the setup process you will be guided to download the Duo Mobile app onto your smartphone. This will then enable the push notification to be sent to you when logging in, from which you will simply tap ‘Accept’ on your phone to authenticate.


This option allows you to use your tablet to receive push notifications or a passcode (via the Duo Mobile app) in order to complete the authentication process.


The landline option is only recommended if your phone is located in a secure area. When you answer the phone call, you will be given instructions to follow.

Duo key fob

If the mobile, tablet or landline options don't work for you (for example: you work in a lab where phones are not allowed) you can collect a Duo key fob from the walk-up IT Support Desk in the Kilburn Building. Once the key fob has been registered to you, it can be used to generate a passcode with which you complete the authentication process.

Using your 2-factor device for IT login

See how each device is used as part of the IT login process, when using 2-factor authentication to log in to the GlobalProtect VPN:

Get started with 2-factor authentication

To use 2-factor authentication you need to be registered with Duo. Find out how to do that and get further advice on how it works: