Hi All, i need some help please. My ex has installed a key logger and possibly a RAT program on my new Macbook. She basically is causing untold damage and despair by basically watching me from her own computer. Everything i do.. email, skype, and any internet activity is monitored from her computer. Everytime i change a password she can see it.. and its become out of control now. She finds it amusing and freely admits it, finding it amusing in the process Firstly I would like to know which steps i should start with? I think if i erase the OS and install a fresh one this might help but do i need to reformat the hard disc first? Could the keylogger be encrypted on the partitions? Will a erase of OS and a new one installed be enough? Secondly if i do the above and that works, what should i do to prevent further attacks? I get a message up on my screen sometimes which is very suspicious.. it says "Your IP address is being used by another user". Is this her? How is she doing this? Any help would be appreciated guys, i am really struggling here.