The computer hackers can also be called as computer's papas. The two types of hacking- the black hat, the hackers who exploit the computer systems and get involved in cyber crimes (who are in news) and white hat are people who use their skills of hacking for good. These hackers' activities are now known be corporate event as they create a great turning point in the world of technology. 1. Gary McKinnon: USA declared him as the biggest military computer hacker ever. He whacked the security system of NASA and Pentagon. This made him one of the great black hat hacker celebrities and got his name into the hacker's community. The nerd 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. 2. Robert Tappan Morris: He is the creator of first internet worm ?Morris worm? he was a student at Cornell and from that where he started writing codes to create w...