Microsoft contact and how can delete 100,000 users?

Question

1/ I wonder what is email address of Microsoft support service? I made a question ticket and get the reply from ******@mail.support.microsoft.com, but It is reject my email when I reply it.

2/ The hacker hacked my account and created 100,000 users (One hundred thousand users). How can I delete all of them?

I used the bulk delete option in Azure, but it is stop after delete around 1000 accounts.

Answer 1

Hello Nhan,

Below are some answers to your exact questions:

***1/ I wonder what is email address of Microsoft support service? I made a question ticket and get the reply from ***@mail.support.microsoft.com, but It is reject my email when I reply it.

Check your Exchange message trace to see why it was rejected or check the headers. That is the official e-mail address from Microsoft Support.

2/ The hacker hacked my account and created 100,000 users (One hundred thousand users). How can I delete all of them?

Perhaps look into making a PowerShell script that deletes the user accounts:

Delete a user

https://learn.microsoft.com/en-us/graph/api/user-delete?view=graph-rest-1.0&tabs=http

You can perhaps put a CSV together and use a ForEach-Object loop to delete each $userId that you don't want.

Import-Module Microsoft.Graph.Users

Remove-MgUser -UserId $userId

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