My Live email account was hacked 4 days ago. I was able to get my password back and change it. However, the person who had access to my account also changed my "security info." Now, when I try to change my security info, his cellphone receives a code, which I have no access, and his email address receives an email to change my security info. Please help me solve this problem. Him having access to my email means he will be able to hack into any account I have.

Thank you!