As many others, I've recently gotten the email saying "Action required: Enable multi-factor authentication for your tenant by 15 October 2024".

Since the docs are very exhaustive and cover the various ways of authentication, especially for large organizations, I wanted to give a quick guide on how to set up multi-factor authentication (MFA) or more specifically 2-factor authentication (2FA) on Azure for default personal accounts.

1. Login to portal.azure.com
2. Search for "authentication methods" and click "Microsoft Entra authentication methods"

1. Enable one of the MFA methods, e.g. "Email OTP"
   • Toggle "Enable"
   • Select "Include" and "All users"
   • Press "Save"

That's it, you will now be required to submit a one time password (OTP) when logging in.