Not many hackers have names and reputations that last years beyond their most famous exploits. George Hotz, aka geohot, is an exception to this rule. Still only 26 years old, Hotz initially burst onto the scene in 2007 when, at the age of 17, he managed to jailbreak the original iPhone and get it to run on other carriers. At the time, back when the iPhone was an AT&T exclusive, this was big and exciting news.
A few years later, Hotz made headlines yet again when he reversed engineered the PS3, subsequently prompting Sony to sue him before the two parties ultimately reached a settlement agreement.