These days any device can be hacked, and Apple's new iPhone is no exception. The Choas Computer Club team successfully hacked Apple's touchID technology by using a photographed fingerprint on a glass surface to trick the supposedly-secure sensor. If you rely on your phone for important documents, you're probably better off using the numeric passcode. Oh wait, that's been hacked as well! Perhaps you should just stash your phone in a large safe, grab a shovel, and bury it underground.
Apple's New touchID Hacked (1 video)