He is an American hacker known for first hardware unlocking the iPhone, developing numerous Jailbreaks for iOS and also hacking the PlayStation 3 (where he was later sued by Sony).īlackRa1n takes advantage of a flaw in the USB code of iOS devices running the iOS 3 firmware generation, which allows unsigned code to be run. BlackRa1n was developed by George Hotz, otherwise known by the alias of GeoHot. The BlackRa1n Jailbreaking tool was used to Jailbreak all iOS devices running iOS 3.1, 3.1.1 and 3.1.2.
