Apple has yet to fix one nasty bug in the lockscreen of iOS 7, and the next one has already appeared. On Friday, Karam Daoud, a 27-year old Palestinian living in the West Bank city of Ramallah, sent Forbes a video embedded at the site below, showing how he’s able to make a call to any number from a locked iPhone running iOS 7 by exploiting a vulnerability in its emergency calling function. The trick includes international calls and calls to premium numbers, is simple enough that any phone thief could easily take advantage of it, and unlike the first bug revealed in the iOS 7 lockscreen Thursday, there doesn’t seem to be any immediate fix for users. Anyone who gets physical access to a locked iPhone running iOS 7 can simply tap “Emergency” on the lock screen, which brings up an emergency calling screen. Then he or she can dial any number and rapidly tap the call button until the phone reverts to an empty screen with an Apple logo at the center and make the call to that number.