In August 2007, seventeen-year-old George Hotz became the first person reported to remove the SIM lock on an iPhone.[8][9][10][11] He traded his second unlocked 8 GB iPhone to Terry Daidone, the founder of CertiCell, for a Nissan 350Z and three 8 GB iPhones.[12] In October 2009, Hotz released blackra1n. It was compatible with all iPhone and iPod Touch devices running iOS 3.1.2.[13][14] On July 13,
