#1 Gary McKinnon:

Gary McKinnon comes first among his peer hackers. His hacking into top notch U.S. institutions was talk of legends. U.S. military, Pentagon, NASA succumbed to his hacking and reduced to sort of mockery. In 2002, an exceptionally odd message appeared on a US Army computer screen: “Your security system is crap,” it read. “I am Solo. I will continue to disrupt at the highest levels.” It was later identified as the work of Scottish systems administrator, Gary McKinnon. This made him the biggest hacker celebrity the world have ever seen and registered his name in golden words in book of hackers. McKinnon is now facing 70 years of imprisonment and is deprived from accessing internet. He has illegally accessed 97 computers and has caused around $700,000 damage to the economy.

The most shocking thing McKinnon’s motives for the large scale hackings, which he claims were in search of information on UFOs. He believed the US government was hiding such information in its military computers.