George Hotz
George Francis Hotz (born October 2, 1989), alias geohot, or simply mil, is an American hacker known for unlocking the iPhone, allowing the phone to be used with other wireless carriers, contrary to AT&T and Apple's intent. Additionally, he developed the limera1n jailbreak tool, which used his limera1n bootrom exploit. He is also noted for hacking the PlayStation 3 and subsequently being sued by and settling with Sony.
Read more about George Hotz: Personal Life, Hacking Apple IOS Devices, Hacking The PlayStation 3, Employment By Facebook, Other Accomplishments and Recognition