Hacker Charlie Miller found a code-signing flaw that allows good apps to go bad. The flaw is found in iOS 4.3 and later. Apple has already pulled Miller’s proof-of-concept app from the App Store. A hacker could see a user’s contacts and photos, play sounds on the phone and activate vibrate mode on an iOS device with the flaw. Apple is pulling Miller’s InstaStock app from its App Store after it was found to have a flaw in code signing.”]
Source: https://gizmodo.com/ios-security-flaw-allows-trusted-apps-to-take-over-your-5857251