Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Thank you for reaching out to Microsoft Q&A Forum. I understanding how alarming it is to see your sign‑in details changed and realize someone else has taken control of your account.
Please kindly note that this is a public user-to-user forum, I do not have the ability, tools to unblock, recover accounts or bypass security. Only Microsoft’s official recovery process can restore access.
Here's what you should do:
1. First, please fill out the Microsoft Account Recovery form (ACSR)
- Go to: https://account.live.com/acsr
- Enter your hacked email and an alternate email where Microsoft can contact you.
- Provide as many accurate details as possible, such as old passwords, frequent contacts/subject lines and submit from a familiar device/location.
- Wait 24–72 hours for a response. You may refine and resubmit up to twice per day.
- Please see this official guide to help you fill out the form more accurately: Help with the Microsoft account recovery form- Microsoft Support
Please try to fill out the recovery form before reaching out to Microsoft Support.
2. If the recovery form fails, contact Microsoft Support directly
If the recovery form doesn’t work or get rejected, please reach out directly to the Microsoft Support team for further assistance. It may offer live chat and, depending on your subscription/region, an option to request a callback:
- Go to Contact - Microsoft Support
- Search for "Account Recovery" in the search box.
- Click "Get Help", then scroll to the bottom and select "Contact Support”.
- When prompted to select Products & Services, select "Other Products"; Under Category, select "Manage account security".
- Look for and select "Chat with a support agent in your web browser" (during business hours) or a similar callback option (if available). Explain your situation clearly.
- Persistence: It can sometimes take multiple attempts to reach a helpful agent or to get your case escalated. Some agents may still direct you back to the form, please let them know you’ve exhausted that option and request further assistance.
- Please note that The Chat support team only works at certain times, so if the last window says you are not available, try to open it again the next day. If you prefer phone support, you can leave a phone number. That way, they can contact you back and help you further.
For more details, you can see this official guide: How to recover a hacked or compromised Microsoft account - Microsoft Support
To help me guide you better, can you please let me know: When you try to sign in with your original address, do you see any error message (e.g., "This account doesn’t exist", “Password is incorrect", etc.?
Also, are you still signed in to this account on any device/app (phone, PC, Outlook app), or are you fully locked out everywhere?
I truly appreciate your time and understanding. Please feel free to let me know how it goes.