A Microsoft file hosting and synchronization service.
Hello,
My name is Jackson and thank you for your question.
I sincerely apologize for the issue you experience with your OneDrive account, I am a user myself and do not work for Microsoft so I understand how frustrating this is.
If you think your account has been hacked, use the Microsoft interactive tool in the link below to guide you through the right steps to recover your account;
https://support.microsoft.com/account-billing/24ca907d-bcdf-a44b-4656-47f0cd89c245
You can see when and where your account has been accessed including successful sign-ins, devices used, IP address and security challenges on the Recent activity page; https://account.live.com/activity
We do not have control over the hackers activities however we can take measures to secure your account and make it difficult to hack. See tips to help keep your Microsoft account safe in the Microsoft link below;
https://support.microsoft.com/account-billing/628538c2-7006-33bb-5ef4-c917657362b9
I will advise you try the Microsoft authenticator app option. The Microsoft Authenticator phone app not only adds another security layer to your Microsoft account, but it also lets you sign in to your account from your phone without a password but you’ll use a fingerprint, face recognition, or a PIN for security.
See steps to setup and use the authenticator app in the link;
https://support.microsoft.com/account-billing/9783c865-0308-42fb-a519-8cf666fe0acc
For help, email the OneDrive Support team using the link below;
https://go.microsoft.com/fwlink/p/?LinkId=528661
Warm regards,
Jackson E.