More iOS bugs and security issues
Even without the fingerprint authentication issue, iOS 7 has a serious security problem: an attacker who knows the not-so-secret sequence of taps and presses can bypass the lock screen and access the owner's photos, contacts, email, history, social media apps and more. There's also a bypass method that uses Siri, and another that will allow an unauthorized user to make phone calls with the phone.
If you have users in your org with company-issued or personally-owned iPhones that they use for business, this becomes your problem. Read more about it in my article over on GFI's Patch Central blog: