Gary McKinnon– I put his name in top because he committed the biggest military hack in all time. Gray McKinnon was a Scottish computer hacker who infiltrated 97 US military and NASA computers. McKinnon claimed that he was only searching for information about UFO activity. In fact McKinnon claims that he was able to access images of alien spacecrafts during his hack, but his connection is too slow to download those photographs. According to U.S. authorites he deleted number of critical files, rendering over 300 computers inoperable and also add a massage to military “Your Security Is Crap”. The US tried to make him guilty, but he still lives in UK’s asylum
Albert Gonzalez– Now these days we all do internet banking for buying products through the various websites. When we browse the profile of Albert Gonzalez we may get fear to use the Internet banking. For long two years this mastermind stole over 170 million credit cards and ATM card numbers. He did this by installing a sniffer and sniffing out the computer data from internal computer networks. Gonzalez was sentenced to prison for 20 years (2 sentences of 20 years to be served out simultaneously).
Kevin Mitnick– The man with an Armani Suit. Kevin Mitnick’s journey as a computer hacker is so interesting. U.S. Department of justice called him the “ Most Wanted Computer Criminal in U.S. History”, he was convicted of hacking Nokia, Motorala and Pentagon. Mitnick was eventually caught and convicted, ending with a 5- year prison sentence, after that he became consultant for computer security. He now runs a security firm named Mitnick Security Consulting, LLC that helps test a company’s security strengths, weaknesses, and potential loopholes, and is the Chief Hacking Officer of security awareness training company KnowBe4.
Kevin Lee Poulsen– Kevin Poulsen also known as ‘Dark Dante’. His most notorious hack was a takeover of all of the telephone lines for Los Angeles Radio station, KIIS-FM, guaranteeing that he would be the 102nd caller and win the prize of a Porsche. He then earned his way onto the FBI’s wanted list when he hacked into federal systems and stole wiretap information. He was arrested, and sentenced to five years in a federal penitentiary, as well as banned from using computers or the internet for 3 years after his release. Like Kevin Mitnick, Kevin Poulsen also changed his way after being released. He become journalist and now he is senior editor of Wired news.
Astra– Astra is a Sanskrit word meaning weapon was the penname of a hacker. A 58 year old greek mathematician hack into France’s Dassault group over a period of five years, stealing weapons technology data and 3d modelling software. The real identity of Astra remains untraced he was in the wanted list since 2002. Astra sold the data approximately 250 people in Brazil, France, Germany, Italy, South Africa, and the Middle East. Unclear, but the damage he cost estimated around $360 million. Astra was caught in January 2008 and sernving six years in jail.