Authenticator

Question

Hello and Happy New Year

I was using the authenticator app on a previous device which i had lost access a few months ago. Now every time i try to sign in to an account which i had enabled 2FA the app is sending the notification on my lost device. Is there any way of reseting the device at which the app is sending the notifications?

Thank you in advance

Answer 1

Hi Spiros,

Thanks for reaching out to Microsoft QnA community.

• Visit https://myaccount.microsoft.com/security-info and sign in to your account. 
• If you're asked for an Authenticator code you don’t have, click Sign in another way to use email, text, or another available method. 

Remove the old Authenticator setup 

• On the Security info page, find Microsoft Authenticator (or Authenticator app) in your list of sign-in methods. 
• Click Delete or Remove next to it, then confirm. 

Re-add Microsoft Authenticator on your new phone 

• On the same page, click Add method and choose Authenticator app. 
• When the QR code appears, open the Authenticator app on your new phone, tap Add account > Work or school account > Scan QR code. 

Verify with a test notification 

• Back in the Security info page, click Send me a notification.  
• You should now receive the approval prompt instantly on your new phone. 

Kindly refer : Troubleshoot problems with Microsoft Authenticator - Microsoft Support 

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