iOS 7 beta 4 fixes charger hack

A recently revealed charger hack for iOS devices has been fixed in iOS 7 beta 4, Reuters reports. The known hack involves using a malicious charger to invisibly install malware on an iOS device in less than a minute, and was officially unveiled at the Black Hat hacking conference on Wednesday. Apple confirmed the latest iOS 7 beta has fixed the issue. The hack will still work on devices running iOS 6.