So today I got my Iphone swapped at the applestore due to battery issues. The thing that worries me is that I don't believe the rep reset the old one. Due to privacy issues, with my numerous contacts and email accounts stored on it, I'm afraid that if it gets into the wrong hands, there might be an "identity-theft" not to mention SPAM issue. So my question is, when I swap the sim cards out, will the Iphone auto-delete it's content to protect the user, in this particular case, me.