Hacking is it good?

What exactly is it?
Is it illegal ?

There are many questions regarding this freaking great topic .

This post focuses on the insight of this process, Lets start:

• I should be very clear that hacking is nothing more then to be a step ahead of present security systems.
• hackers are just an always advanced version of a developer or tech freak.

• there are many divisions of them, 

     red hat,white hat,ethical and blah            blah..... :/
    basically this classification classifies       them on the basis of methods they           use and the organization they work        for, but they had nothing to do with        for whom they are working .

• they just enjoy what they do,

     secondly hacking isn't illegal unless        you intrude into someone's domain        without her prior approval.

Saying of Classification,  There are basically two type of hackers  first kind rely on third party apps and use some inbuilt scripts and the second  kind are those who develop their own scripts to exploit a target.
 no doubt being the self reliance second kind are more effective .

A Typical hacking process involves following architecture :
1.finding target
2.finding vulnerabilities
3.connecting to host
4.backdoor installation
5.execution

steps 2 and 3 are very crucial and toughest part

one thing i forgot to mention that PERFECT TIMING is a non detachable part of it as timing is everything  in this field.
for example recently Google.com domain was bought by some guy, its not his fault ,infact its the timing in which he clicked his mouse !

IN SHORT hackers are ordinary people who uses obvious things to achieve extraordinary results .

Backtrack statement clearly defines a good hacker i.e. "The quieter you are,the more you are able to hear."

So hacking is one of the best outcome of man-machine interaction,its like the artificial world which can be manipulated depending upon its creater-good and bad.