Hello,
Welcome to the Microsoft Outlook Community
Good afternoon . I'm sorry for what happened. I understand the concern, especially when the attacker changes the alias, password, or security information used to recover the account.
When a Microsoft account is compromised and recovery methods have changed, access can become more difficult. For security and privacy reasons, the Microsoft Community does not have access to the accounts or tools necessary to retrieve or change security information on behalf of the owner.
The first step is to use Microsoft's official recovery procedure:
If the recovery procedure does not allow you to regain access, you can also check the service options available from Microsoft Support:
Contact Microsoft Support
1. Go to the support page and select Get Help Click here! .
2.Let them know that you need help with account security.
3. Follow the options presented to check if there is chat support or another channel available for your case.
4.f contact with an agent is offered, follow the guidelines provided during the service.
5.Availability of contact channels may vary by product, region, and time. If an option is not available, please try again later.
Important: Don't share your password, security codes, full email address, or other personal information here. This data isn't necessary for us to guide you in the community.
I hope these guidelines will help direct the recovery of the account. If you encounter any difficulties, please let us know at which stage the procedure stopped and what message was presented, without including sensitive information.
When possible, return to report the result. Your feedback can also help other users who are facing a similar situation.