I need your help guys ( My 2010 X account was hacked)

My main account, which I opened in 2010, was hacked since July 19, and the person changed the email as well… Is there any way to find out who did that?

THIS is the EMAIL that did this to me [email protected]

After much back and forth with X, this is what I was told, as can be seen in the image below

ADMIN! I need your help to approve this post, as I need to understand what can be done to retrieve the account or at least know the user behind this attack.