This sparked a private discussion between Andrés Gorzelany and me where he asked me if I had written a blog post about this already. You only need to verify on one of the devices.How To Handle Password and 2FA Madness Like a ProĮvery once in a while, I come across a random Twitter conversation where people share their struggles and frustrations about the current state of 2FA apps and migrating those codes to a new phone.

From now on, all your registered devices will receive notifications from the Microsoft Authenticator app when you sign in.

Your second device is registered successfully and it will be shown in the list of security info methods.When you see the following screen, click ' Next'.Tap on the notification, enter the number displays and tap “ Yes” for verification.You will receive a notification on your second device.A notification is sent to the Microsoft Authenticator app on your second device.A 6 digit code will be shown and your account is added.(Note: For iPhone users, you may need to change the app permission to scan the QR code: Settings > Authenticator > Camera) If you cannot use your phone camera, click ' Can't scan image?' to enter the 9 digit code and the URL instead. Now scan the QR code on the browser with your device.Click the + button in the top right-hand corner and choose “ Work or school account”.When you see the following screen, open the Microsoft Authenticator app on your second device.If you have not downloaded the app, click ' Download now'. Click ' Next' if you have installed the Microsoft Authenticator app.Open the drop-down list and choose ' Authenticator app', then click ' Add'.Choose ' Security info' from the left menu, then click ' + Add method'.Then click your profile icon in the top right-hand corner and select ' View account'.Tap on the notification and choose ' Approve'. Your will receive a notification on your registered device.Sign in with your EdUHK email address and password, then click ' Next'.Open a browser on your computer and sign in to O365 at.Install the Microsoft Authenticator app on your second device.

To set up the Microsoft Authenticator app on multiple devices, please follow the steps below.

Move ms authenticator to new phone