Most of  peoples not acquainted with types  hacker.So   Today i am gonna tell you Types of hacker and  their responsibilities............... as we know that hacker are the most intelligent people or programmer ,means we can say that to be a good hacker you must be good programmer

• Types of Hacker

•  White Hat Hacker                                                                                                                                        A white hat hacker breaks security for non-malicious reasons, for instance testing their own security system. This type of hacker enjoys learning and working with computer systems, and consequently gains a deeper understanding of the subject. Such people normally go on to use their hacking skills in legitimate ways, such as becoming security consultants. The word 'hacker' originally included people like this, although a hacker may not be someone into security.

• Grey Hat Hacker                                                                                                A grey hat hacker is a hacker of ambiguous ethics and/or borderline legality, often frankly admitted. According to one definition of a grey-hat hacker, when they discover a vulnerability, instead of telling the vendor how the exploit works, he or she may offer to repair it for a small fee. When one successfully gains illegal access to a system or network, he or she may suggest to the system administrator that one of his or her friends be hired to fix the problem; however, this practice has been declining due to the increasing willingness of businesses to prosecute. Another definition of Grey Hat maintains that Grey Hat hackers only arguably violate the law in an effort to research and improve security

•  Black Hat Hacker                                                                                             A black hat hacker is someone who breaks computer security without authorization or uses technology (usually a computer, phone system or network) for vandalism, credit card fraud, identity theft, piracy, or other types of illegal activity. Black hat hackers are also referred to as the "crackers" within the security industry and by modern programmers. Crackers keep the awareness of the vulnerabilities to themselves and do not notify the general public or the manufacturer for patches to be applied. Individual freedom and accessibility is promoted over privacy and security. Once they have gained control over a system, they may apply patches or fixes to the system only to keep their reigning control. 

• Script kiddie                                                                                                        A script kiddie is a non-expert who breaks into computer systems by using pre-packaged automated tools written by others, usually with little understanding. These are the outcasts of the hacker community. It is generally assumed that script kiddies are juveniles who lack the ability to write sophisticated programs or exploits on their own and that their objective is to try to impress their friends or gain credit in computer-enthusiast communities

 Best Hackers The World Has Ever Known

1. Gary McKinnon

Gary McKinnon must’ve been a curious, restless child, for to gain information on UFOs, he thought it better to get a direct access into the channels of NASA. He infiltrated 97 US military and NASA computers, by installing virus and deleting a few files. All the efforts to satisfy his curiosity, but, alas, curiosity killed the cat. It was soon found that McKinnon was guilty of having hacked the military and NASA websites from his girlfriend’s aunt’s house in London. While entering and deleting the files from these websites wasn’t enough, McKinnon thought of shaming the security forces by putting out a notice on the website that said, “Your security is crap.” Well, looks like McKinnon was something, if he could shut down the US Military’s Washington Network of about 2000 computers for 24 hours, making the hack, the biggest military computer hack of all time!

2. LulzSec

LulzSec or Lulz Security, a high profile, Black Hat hacker group, gained credentials for hacking into Sony, News International, CIA, FBI, Scotland Yard, and several noteworthy accounts. So notorious was the group that when it hacked into News Corporations account, they put across a false report of Rupert Murdoch having passed away. While the group claims to have retired from their vile duties, the motto of the group, “Laughing at your security since 2011!” stays alive. There are assertions of the group having hacked into the websites of the newspapers like The Times and The Sun to post its retirement news. Many, however, claim that this group had taken it upon itself to create awareness about the absence of efficient security against hackers.

3. Adrian Lamo

Adrian Lamo decided to switch careers when he realized the potentials of his skills. He became a news when he hacked into Yahoo!, Microsoft, Google, and The New York Times. This, although culminated into his arrest, it later helped him gain the batch of an American Threat Analyst. A guy who would hack into top-notch accounts sitting in the spacious and comforting cafeterias, libraries, internet cafes, soon turned Wikileaks suspect Bradley Manning over to FBI. While Manning was arrested for leaking several hundred sensitive US government documents, Lamo went hiding or should we presume, undercover?

4. Mathew Bevan and Richard Pryce

Targeting the over-sensitive nerves, what Mathew Bevan along with his alleged partner Richard Pryce did, could have triggered great many issues between USA and North Korea. The duo hacked the US military computers and used it as a means to infiltrate the foreign systems. The crucial contents of Korean Atomic Research Institute were dumped into USAF system. However, the contents were majorly relevant to South Korea and hence, less volatile. But this, nonetheless, could have led to a huge international issue.

5. Jonathan James

The first juvenile to be imprisoned for a cyber-crime at the age of 16, Jonathan James or better known as c0mrade, hacked into Defense Threat Reduction Agency of US department. Further, he installed a sniffer that scrutinized the messages passed on between the DTRA employees. Not only did he keep a check on the messages being passed around, in the process, he collected the passwords and usernames and other such vital details of the employees, and further even stole essential software. All this cost NASA to shut down its system and to pay from its pocket $41,000. c0mrade, however, had a bitter ending as James committed suicide in 2008.

6. Kevin Poulsen

How far would you go to win your dream car or a dream house? How far will you go to win an online contest or a radio show contest? Perhaps, you shall keep trying your luck, unless you are Kevin Poulsen! Poulsen infiltrated a radio shows call-in contest just so he could win a Porsche. Dark Dante, as he was better known, went underground after FBI started pursuing him. He, later, was found guilty of seven counts of mail, wire and computer fraud, money laundering and the likes. What turned out to be rewarding in Dark Dante’s case is – his past crafted his future. Poulsen now serves as a Senior Editor at Wired.

7. Kevin Mitnick

Clad in an Armani suit, when a bespectacled face in his mid-40s smiles at you from the computer screen, you can hardly consider the man a cyber-criminal. Such is the case with Kevin David Mitnick. Once upon a time, the most wanted cyber-criminal of US, now is an affluent entrepreneur. Kevin, who is now a security consultant, was convicted of hacking Nokia, Motorola and Pentagon. He pleaded guilty to seven counts of fraud that included wire fraud, computer fraud and of illegally interception a wire communication. After five years of incarceration that included eight months of solitary confinement, Mitnick now has started afresh. However, his knack with the computers is still reminisced and was even depicted on celluloid in the films Takedown andFreedom Downtown.

8. Anonymous

The concept of being a “digital Robin Hood” was far from being conceived, but in the computer age, it is very likely that someone somewhere has bagged this title. A “hacktivist group” called Anonymous are known with the penname of being the “digital Robin Hood” amongst its supporters. Identified in public by wearing a Guy Fawkes Masks, Anons, as they are widely known, have publicized themselves by attacking the government, religious and corporate websites. The Vatican, the FBI, the CIA, PayPal, Sony, Mastercard, Visa, Chinese, Israeli, Tunisian, and Ugandan governments have been amongst their targets. Although, Anons have been arguing whether to engage in a serious activism or a mere entertainment, many of the group members have clarified their intent which is to attack internet censorship and control.

9. Astra

Astra, a Sanskrit word for weapon was the penname of a hacker who dealt in the weapon stealing and selling. A 58-year-old Greek Mathematician hacked into the systems of France’s Dassault Group, stole vulnerable weapons technology data and sold it to different countries for five long years. While the real identity of the ASTRA remains untraced,

officials have said that he had been wanted since 2002. Astra sold the data to approximately 250 people from around the globe, which cost Dassault $360 millions of damage.

10. Albert Gonzalez

How safe is internet banking? When we browse through the profile of this mastermind, we are certain that one ought to use the World Wide Web with immense care. For two long years, Albert Gonzalez, stole from credit cards of the netizens. This was recorded to be the biggest credit card theft in the history of mankind. He resold approximately 170 million credit cards and ATM numbers. He did so by installing a sniffer and sniffing out the computer data from internal corporate networks. When arrested, Gonzalez was sentenced to 20 years in Federal prison.

                                                            The Ethical Hacker
                                        Most people thinks that hackers are computer criminals.
           They fail to recognise the fact that criminals and hackers are two totally different things.
         Hackers in reality are actually good and extremely intelligent people who by using their                  knowledge in a constructive manner help organisations, companies, goverment, etc. to secure                                                 documents and secret information on the internet.