8. Albert Gonzalez
Albert Gonzalez pulled off one of the largest hacks in history. Over two years, he orchestrated a massive credit card scheme, stealing about $200 million from 170 million credit cards and ATM numbers. This made it the biggest credit card theft ever, earning him a notorious reputation as one of the greatest hackers.
Gonzalez’s goal was to make $15 million, buy a yacht, and retire. Ironically, while running this scheme, he was working for the US Secret Service and earning $75,000 a year. He was eventually caught and sentenced to 20 years in prison.