Internet hacking

Hacking was a term that originated in 1990s and is associated with the unauthorized use of computer and network resources. By definition, hacking is the practice of altering the features of a system, to accomplish a goal which is not in scope of the purpose of its creation.

Hacking is more commonly used in context of “Computer Hacking” where threat is posed to security of the computer and other resources. In addition, hacking has few other forms which are less known and talked about .e.g. brain hacking, phone hacking etc.

“Hacker” was a term used to denote a skilled programmer who had competency in machine code and operating systems. Such individuals were proficient in solving unsatisfactory problems and often interpreted competitors’ code to work as intelligence agents for smallsoftware companies

Ethical hacking is a way to check such thefts and make information less vulnerable to outside malicious hackers.

Most hackers are technology buffs who are updated with know-how of computer technology and keep learning the different aspects of a computer, from programming and code view point to hack any particular system. They consider hacking as an art and a real-life application of their expert level problem solving skills.

Such hackers take opportunity in assisting corporate with their abilities and help find flaws in security system of the computer and do not intend to harm others.

Innumerable hackers attack the computer systems security by means of viruses, worms, exploits etc.
hacking has a more negative implication and so is the term hacker. 
Hacking which is done on request and involves a contract of terms and conditions allows authorized access to the target and hence referred to as ethical hacking.