Hacking is an engaging field but it is surely not easy. To become a ethical hacker. Some people think hacker is always criminal, but this is wrong,

hackers have a very important because Only hacker know who is hacker, many company's need hackers to protect the networking services of that company, we are not learning hacking to cheat someone. You have to know that .

Why we should Learn hacking:
We are learning hacking for nothing even to protect our account form a bad hackers break some thin that is a spam in computer and social networks

Their is Three different type of hackers

White Hat, white hat is good guy that breaking computer to do some that not any one can do
Gray Hat is between write hat and black hat he a master of write hat
Black Hat , black hat is good guy that breaking computer to steal money he is a criminal but not always