I just got my iMac a couple days ago. Previous owner said he removed everything that was his and cleaned it all but the messages icon keeps updating in real time because it's still connected to his iPhone. I'm pretty unfamiliar with anything Apple right now but I am getting the hang of it. Just so I can be at a bit of ease, this guy can't see my information on this computer now can he? How can I disconnect this iMac from his iCloud account completely and have just my own. All I own is the Mac and an iPod, that's all I want connecting to each other under my own account of course. Sorry if this isn't the appropriate place for this thread but I figure since it's an older mac and there are probably different ways to go about it on here, it might fit okay Any ideas as to how I can fix these issues would be great! Thanks!