Setting Up Multi-Factor Authentication (MFA)

This page describes how to set up MFA for your Maths IT account. For information about setting up MFA on your SSO account, please see Your Oxford SSO Account.

From September 2026, the department will require MFA for all Maths IT accounts. (Here is an OxCERT video on why MFA is needed.)

Setting up MFA

We strongly recommend setting up more than one MFA method, in case you find yourself in a situation where one method does not work - e.g. lost/broken mobile phone. We normally recommend that you set up the Microsoft Authenticator app on your smartphone, plus another method which does not depend on the same device.

You will be prompted to set up MFA when you first activate or log into your Maths IT account on the web. Alternatively, go to https://account.maths.ox.ac.uk/mfa. You will be asked to enter your Maths IT password for verification.

Screenshot of the MFA setup page

You can then choose which method to add:

  • Authenticator app: An app on your phone/tablet/computer displays a code that changes every 30 seconds, which you must enter to log in. Recommended as your primary method to ensure you can log in on any device.
  • Passkey: Uses your device's built-in security chip, a phone connected via Bluetooth, or a security key connected via USB/NFC. Allows you to log in with a PIN or fingerprint/face scan instead of your password – more convenient and more secure, but not available on all devices.

There are various ways you can set these up, depending on your preference - see below for our suggested options. If you need help with this, please contact the IT support team.

Troubleshooting

If you get the error "Invalid MFA code" when logging in with an authenticator app, please check that the clock on your mobile phone is precisely correct. This is how it knows which 6-digit code to display, so if the time is wrong by more than 30 seconds, you will not be able to log in. (Most phones will set the time automatically, so this is rarely a problem.)

If you need further assistance, please contact the IT support team.

Lost MFA Methods

If you are still signed into your account:

If not but you have a working backup MFA method:

Alternatively, if you are still able to log into your SSO account:

  • Go to https://account.maths.ox.ac.uk/mfa
  • Log in with your Maths username and password
  • Click "Lost your MFA?"
  • Click "Authenticate with SSO"
  • Log into your SSO account to verify your identity and complete the login process
  • Enter your Maths password again for verification
  • Delete the lost MFA method
  • Set up a replacement method if needed (see above)

If you are not able to do any of the above, visit the Maths IT support team with your university ID. Once your ID has been verified, all of your existing MFA methods will be removed. You can then log in and set up new MFA methods from scratch (see above).

Last updated on 10 Jun 2026, 6:31pm. Please contact us with feedback and comments about this page.