How did someone find my xbox account?

But it wasn't me tht did it so how can i contract xbox cuz someone took my account

Q Hello and welcome to the Xbox community, my name is Fernando and it's a pleasure to help.

Log into the Xbox app and select the Friends tab. Enter the gamertag in the search box and press Enter. Pay attention to gamertag spelling and spacing.

Sincerely, Fernando.

if you mean how do you kick someone off of your xbox account, you cant. ive tried before. the best thing to do is make a new account but still keep the old one on your xbox so you can still get the digital games you bought. this also means that you have to restart all of your progress

Hello David how are you?

My name is Ezequiel I'm an Independent Consultant.

Yes, it is possible that someone has made this migration, you need to check, for that you need to contact support.

https://help.minecraft.net/hc/request/new?ticket_form_id=360001225811

I've tried to get help from Minecraft but they always tell me to go to Microsoft for help.