When you sign in to your online accounts – a process we call authentication – you’re proving to the service that you are who you say you are. Traditionally that’s been done with a username and a password.
There’s a better way that almost all online services – banks, social media, shopping, and yes, Microsoft 365 too – have added a way for your accounts to be more secure. You may hear it called Two-Step Verification or Multifactor Authentication but the good ones all operate off the same principle.
- Making accounts more secure with multi-factor authentication
https://www.youtube.com/watch?v=nc7fpGJsE1g&feature=youtu.be
Read more at:
https://support.microsoft.com/en-us/topic/what-is-multifactor-authentication-e5e39437-121c-be60-d123-eda06bddf661