Hacker is a person or organization which cracks a computer security and enter to others computer or servers through many ways (one of best way is BACK DOOR) .
There are many types of Hackers among those main types of hackers listed bellow:
1. White-Hats Hackers
2. Black-Hats Hackers
3. Grey-Hats Hackers
4. Blue-Hats Hackers
5. Elite Hacker
6.Script Kiddie
8.Hacktivist
1. White-Hats Hackers
This hackers have all knowledge about computer security. This hacker secure the financial or other data of employees like security guard of Networks.This hackers are also called as Ethical Hacker.Ethical Hacking is big profession today.
3. Black-Hats Hackers
This hacker is very violent. This hacker crack others computer security to thieve data and other important information.Black hat hackers form illegal hacking groups often portrayed in popular culture, and are "the epitome of all that the public fears in a computer criminal".
3. Grey-Hats Hackers
A grey hat hacker is a combination of a Black Hat and a White Hat Hacker. A Grey Hat Hacker may surf the internet and hack into a computer system for the sole purpose of notifying the administrator that their system has been hacked.
For Example : Grey Hacker surf on internet and they find some week security websites and hack it. Then he offers to author of website as "Your Website has no strong security. Call me I give you best security at least price"
4. Blue-Hats Hackers
A blue hat hacker is someone outside computer security consulting firms who is used to bug test a system prior to its launch, looking for exploits so they can be closed.
Many leading companies use Blue Hat like Microsoft,Google,Apple etc.
5. Elite Hacker
A social status among hackers, elite is used to describe the most skilled. Newly discovered exploits will circulate among these hackers. Elite groups such as Masters of Deception conferred a kind of credibility on their members.
6.Script Kiddie
A script kiddie (also known as a skid or skiddie) is a non-expert who breaks into computer systems by using pre-packaged automated tools written by others, usually with little understanding of the underlying concept—hence the term script (i.e. a prearranged plan or set of activities) kiddie (i.e. kid, child—an individual lacking knowledge and experience, immature).
8.Hacktivist
A hacktivist is a hacker who utilizes technology to announce a social, ideological, religious, or political message. (This hackers do not have any Hacking Knowledge....This persons publish only Ignoble articles on social media. )
Example : Infamous articles about actors,politicians and religion written on Facebook.