hacking means

i want to know about hacking if you have any information are data plz send it to me sir..........................

Hai buddy,

In computer security, a hacker is a person who specializes in work with the security mechanisms for computer and network systems. The subculture around such hackers is termed network hacker subculture, hacker scene or computer underground. While including those who endeavor to strengthen such mechanisms, it is more often used by the mass media and popular culture to refer to those who seek access despite these security measures. Accordingly, the term bears strong connotations that may be favorable or pejorative.