Managing personal Outlook.com account settings, security, and privacy
Hello everyone,
Welcome to Microsoft Community.
We understand your account security concern. Since the nature of the issue may contain personal or sensitive information of your account that can't be discussed in the forum, I suggest that this be addressed through a secured environment for your privacy and ease of access to our moderator's reply.
You can visit this article for additional information on how you can protect your account and to get additional help from Microsoft team.
In addition, you can also submit a new support request through this link to get in touch with the Microsoft team privately.
Let us know if you have additional concerns.
Thanks,