Forum Discussion
MFA for one email account with several users
Hi Decomplexity
You can add multiple authenticator app 'instances' on a single account. If you decide to go the push notification way, be aware all registered authenticator apps for that account will get the notification which is something you may wish to avoid.
In that case choose to go the app with code direction. Here you have the choice to have all four devices share the same 'instance' (the 6 digit code will be the same on all devices) or you can create a separate instance for each phone (each 6 digit code will be different). The latter being more secure.
You can find some more detailed information here (article is from 2019 so the screenshots are from the 'old' registration experience but the principle is still valid.
Using multiple authenticator apps with a single Microsoft 365 user account – CIAOPS
Hi Decomplexity
You can add multiple authenticator app 'instances' on a single account. If you decide to go the push notification way, be aware all registered authenticator apps for that account will get the notification which is something you may wish to avoid.
In that case choose to go the app with code direction. Here you have the choice to have all four devices share the same 'instance' (the 6 digit code will be the same on all devices) or you can create a separate instance for each phone (each 6 digit code will be different). The latter being more secure.
You can find some more detailed information here (article is from 2019 so the screenshots are from the 'old' registration experience but the principle is still valid.
Using multiple authenticator apps with a single Microsoft 365 user account – CIAOPS
