MFA - Multifactor Authentication
The following is what multi-factor authentication is, why we are doing it and how to getting yourself setup
Multi-Factor Authentication
If a user’s credentials are compromised the MFA process will stop any potential risk around that users email account being accessed to cause further account compromise, data leakage or PR damage.
MFA will have minimal impact on your day to day use of your emails but using new devices or traveling to new zones you may experience the extra prompts through your mobile phone which is by design to keep your email account protected.
Setting yourself up
Using the link - http://aka.ms/mfasetup from your computer, complete the online form putting the mobile number you would get your text message to validate your login. (This will not enable MFA on your account, it’s a preparation step)

When logging in from a device that has not authenticated previously you will see the dialogue box
below. Within 30 seconds your phone should receive a text message with the six digit verification
code that needs to be entered in box for authentication.

If you receive the text message but are not trying to log into a device that could mean someone is
attempting to access your account. In that instance please contact someone from the IT
Department for assistance.