Despite Apples assurances that your phones files are protected behind that four-digit passcode, one German security expert says a lost or stolen iPhone might not be as safe as the company suggests. Specifically, any hacker who manages to get his or her hands on your phone could pretty easily access your email attachments. Andreas Kurtz, of independent security research firm NESO Labs, wrote about this iPhone security flaw in a blog post on April 23. He said he realized that email attachments within the iOS 7 Mobile.Mail app are not being protected the way Apple claims they are. Apple has