Apple id password Hack
I am asking on behalf of my girlfriend, we think her sister tried to log in into her account. Someone changed the password on her apple id and her hotmail email account... I have since changed the passwords and security questions. (we think her sister knew her answers to her security questions). On her hotmail account it showed each time that person tried to log in and it listed time and date, even said when they reset password,
(basically showed history of all log in activity) Once they changed the hotmail password and had access to her account, they clicked forgot password for apple id and apple sent an emailed showing how to reset the apple id password, so since that person had access to her email it was easy for them to create a new password for her apple id... So i have since changed all security questions and even misspelled the answers on purpose so it should be extremely difficult to guess the answers now. So my question is, is there a way to view the history of all log in activity for the apple id (like the hotmail account showed)? and is there anymore steps i could do to prevent this in the future?
iPhone 5c, iOS 7.1.2