MFA Lockout

Question

I am locked out of my business account and I am the only Admin for the tenant account and I have lost the device that had the authenticator and I am unable to log in. This is affecting my business operations substantially.

Kindly assist me to get back my account.

Answer 1

Please understand that as forum moderators, we do not have the tools or sufficient access to make changes to user accounts, including logging in, resetting passwords, or modifying access rights. For your security, only Microsoft Support can assist with these requests. 

Hello @Manjari Mukherjee,

Thank you for posting your question in the Microsoft Q&A Forum! I’m really sorry to hear about what you’ve been going through.

Since you are the only admin, you will need to contact Microsoft’s Data Protection team. This team has the authority and the specific security procedures to verify your identity as the legitimate owner of the account and then reset your MFA settings from their end. Please try to find the related hotline number to call the frontline and let them raise a ticket for you: Customer service phone numbers - Microsoft Support    

Here are some tips and an example of a prompt to help you navigate the IVR more effectively:  

(When you call the support number, you may hear an introduction of about 30 seconds such as "you can visit the link...". You can ignore this introduction and wait until you are presented with the options. Then press "1" as a business email user, and again "1" for technical help)       

In some regions you may initially interact with an automated system, so here is an example of how you can answer the prompts to reach the right team more quickly:  

• What kind of problem are you experiencing?          
• Answer: Authenticator          
• What products do you use?          
• Answer: Office 365 for business          
• Is this for an education or company account?          
• Answer: For companies          
• Are you an administrator?          
• Answer: Yes          
• Are there any other administrators in your organization?          
• Answer: No. I am the only admin in my tenant           
• Do you need a... Service request?           
• Answer: Yes. I need to create a ticket. Please send me direct to the Data Protection Teams.       

During the call, you will be asked to provide information that verifies your identity and proves ownership of the tenant, such as your organization name, billing information, contact email, phone number, or other subscription‑related details. This is a normal part of the security procedure. 

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If you are unable to reach support via the phone numbers, there is a workaround you might consider: You can register for a new Microsoft 365 tenant by signing up for a trial subscription here: Microsoft 365 Business Plans and Pricing | Microsoft 365    

Once the new tenant is created, you can access the admin center and submit a support ticket from there, requesting to speak with the Data Protection Team on behalf of your original tenant.    

Important notes:     

• This new trial tenant will not give you access to any of the data or settings in your original locked tenant. It is solely a temporary means to contact Microsoft support.    
• The resolution time might be longer as you are contacting support from a different tenant.    
• Remember to cancel the trial subscription for the new tenant once your issue with the original account is resolved to avoid any unintended charges.  

I hope the information provided helps guide you in the right direction. Although I’m unable to take direct action on your account as a forum moderator, I sincerely hope that the steps and recommendations I’ve shared can support you through the process.  

  

Warm regards, 

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Answer 2

How do I Contact Microsoft Data Protection Support

Answer 3

If you are locked out of your business account and are the only administrator, you will need to follow specific steps to regain access. Since you have lost the device with the Microsoft Authenticator app, here are the recommended actions:

1. Contact Microsoft Data Protection Support: Since you are the sole admin, you should reach out to Microsoft’s Data Protection team. You can do this by calling their customer service hotline. When you call, make sure to explain that you are the only admin and that you are locked out due to the loss of your authenticator device.
2. Navigate the IVR System: When calling, you may encounter an automated system. Here’s a suggested way to respond:
   • Indicate that you are a business user.
   • Specify that you need technical support.
   • Confirm that you are the administrator and that there are no other admins in your organization.
   • Request to create a service request.
3. Create a Temporary Account: If you are unable to reach support through the hotline, consider creating a trial Microsoft 365 tenant. This will allow you to access the Admin Center and submit a support ticket. Make sure to clearly state that you are locked out of your original tenant and provide necessary details about your account.
4. Provide Required Information: When you manage to contact support, be prepared to provide your administrator account email, the domain name of your locked tenant, and any error messages you are receiving.
5. Follow Up: After submitting your request, keep an eye on your email for any updates from Microsoft regarding your account recovery.

These steps should help you regain access to your account and minimize the impact on your business operations.

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References:

• Global Admin Locked out - Microsoft Q&A
• Requesting a Tenant Admin MFA Reset - Microsoft Q&A