Abstract
Now a day, all the information is available online, a numerous amount of people uses it, some uses it for gaining knowledge and skills while some uses it for illegal work or crime. The most common process of destroy and steal private information is defined in terms of Hacking. This is due to weakness of a system in a network but when Hacking involves for good intentions is known as Ethical Hacking. There are different methods or techniques used to hack the information. Hacking is illegal and harmful for the society but Ethical Hacking is legal and helpful for the society. This paper includes hacking, its history, its kinds, different types of hacking, operating system used in hacking and its goals.
Keyword: Hackers, Ethical Hackers, Security, Information security.