Two-factor authentication (or MFA, multifactor authentication)
Two-factor authentication protects your user account and data from unauthorized access even if you fall victim to a phishing.
In addition to your username and password, two-factor authentication is done either by answering a phone call, using a six-digit code received as a text message, or by using a smartphone app, Microsoft Authenticator. Authenticator app is the most recommended and easiest way to use the two-factor authentication.
This app is available for Android devices from the Google Play Store and iOS devices from the Apple App Store.
Your phone is an important part of two-factor authentication.
For instructions on how to enable two-factor authentication, visit the LUC IT Services service portal:
User accounts and access management - Two factor authentication in Office 365 services (service-now.com)