my account had been signed in from somewhere else and there were emails sent from it!

               a few months back i opened my hotmail account and got the notification that my account had used from somewhere in america and i was told if it wasnt me i should change the password. I did so changed the password but a few days back i noticed that there was an email sent my account with my details like my name my phone's model number. I was wondering if i should report that to hotmail. if yes then how guide me please!