iOS users are starting to encounter a set of new mobile security features that began to quietly roll out to iOS and iTunes customers yesterday. Apple is reportedly asking iTunes account holders to set three new security questions and set a backup email address on their iPhones and iPads, CNET said. The measures should help users regain access to their account should it ever be compromised by a would-be hacker or phisher. It would be incredibly easy to quickly purchase dozens of expensive applications, should a hacker ever gain access to your iTunes account, so these new security measures should make it even easier for iPhone, iPad and iPod touch owners to quickly lock a hacker out. It appears that Apple is slowly rolling out these new enhancements in waves, so it hasn’t hit everyone’s account just yet.