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Microsoft Security | Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
If you are trying to log in to your account from a new device and cannot access your old device where the Microsoft Authenticator app was installed, you have a few options to regain access:
- Contact Microsoft Data Protection Support: Since you are unable to access the Authenticator app and are the only administrator for your account, you should contact Microsoft Data Protection Support. They have tools and processes to help verify your identity and regain access to your account. You can find the customer service phone numbers on the Microsoft Support website.
- Use a Temporary Account: If you are unable to reach support, you can create a new trial tenant. This involves signing up for a new Microsoft 365 subscription, which allows you to access the admin console of the new tenant. From there, you can submit a support ticket to request assistance with your original account. Make sure to provide details about your locked account, including your administrator email and any error messages you receive.
- Alternative Authentication Methods: If you have set up alternative methods for multi-factor authentication (MFA), such as SMS or email, you can try using those to gain access. However, if those methods are also not working, contacting support is your best option.
Make sure to explain your situation clearly when you contact support, emphasizing that you are the sole administrator and have lost access to your previous device.
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