The explosive growth of the Internet has
brought many good things such as E-commercebanking, E-mail, cloud computing, but there is also
a dark side such as Hacking, Backdoors, Trapdoors
etc. Hacking is the first big problem faced by
Governments, companies, and private citizens
around the world. Hacking means reading email’s
of someone, stealing passwords, stealing credit card
numbers etc. An ethical hacker is one who can help
the people who are suffered by this hackings. This
paper describes about Ethical hackers, it’s types
and phases of hacking