Standard TOTP 2nd Factor Authentication (2FA) on AzureAD and Office 365
I recently migrated from Google Apps to Office 365 for my personal emails, and seeing that I wanted to more or less replicate exactly what I had with Google, on the elements on my migration checklist was setting up 2FA.
Sadly, 2FA is another place where Microsoft tried to reinvent the wheel and put out an Authenticator app of their own, completely disregarding the fact that standard TOTP works perfectly fine, totally secure, and familiar to anybody who gives half a hoot about security.