Stolen phone with authenticator app active

Question

Hi, my phone was stolen and it had the app available. It shouldn't be a problem but the thief made me give the passcode and I cannot format it remotely. He has my phone with my apps still logged in. I'd like to revoke authenticator app on that phone but, I can't find where I can do it

Answer 1

You can follow along here.
https://support.google.com/accounts/answer/6160491?hl=en
https://support.apple.com/en-us/HT201472

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Answer 2

Yes, I can't remove it from Find My device on apple because they disabled that so it's no longer possible for me to delete the content remotely. That's why I need to log out the authenticator app

Answer 3

Adding Authenticator to your new device doesn't automatically remove the app from your old device. Even deleting the app from your old device isn't enough. You must both delete the app from your old device AND tell Microsoft or your organization to forget and unregister the old device.

• To remove the app from a device using a personal Microsoft account. Go to the two-step verification area of your Account Security page and choose to turn off verification for your old device.
• To remove the app from a device using a work or school Microsoft account. Go to the two-step verification area of either your MyApps page or your organization's custom portal to turn off verification for your old device.

https://learn.microsoft.com/en-us/azure/active-directory/user-help/user-help-auth-app-faq#lost-device

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