Our email has been hacked

Dear @Hau Vo Dong,

Thank you for contacting Microsoft Q&A Forum!

We understand the seriousness of your situation. Since your email account was compromised and bank details were altered, this is considered a critical security breach.

It is urgent to raise a support ticket immediately via https://admin.microsoft.com/#/support/requests because:

• Our security team needs direct access to your tenant logs and account data to start the investigation.
• Delays can lead to further unauthorized access or financial fraud.
• A ticket ensures priority handling and escalation to our incident response specialists.

Please contact to IT Administrator to create a support ticket right away. This is the fastest way for us to begin securing your environment and restoring trust.

We strongly recommend acting now to minimize risk and prevent additional damage.

Best Regards.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". 

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.