1. Why people hack depends on what they're trying to accomplish. Obviously, a criminal hacker is
out to steal financial information or someone's identity. This can be done by breaching security
systems of a company's database or with viruses. These aren't the only hackers out there
though. In recent years, people have been discussing "ethical" hackers. Many people have a
problem believing that any type of hacking could ever be a good thing. Still, there are hackers
that find problems and report them. The term hacker, always gives an about someone using
computer to commit crimes. What need to realize though is that some hackers hack for a good
reason. There are hackers that spend their time trying to find weak spots in software. They
don't do this in order to hack other's machines. They find the loopholes in the system and find
ways to fill them for future security. Without this type of hacking, there would be many more
crime-related hacking cases than there currently are.

2. Hackers can be divided
into three groups:
• White Hats
• Black Hats
• Grey hats.

3. WHITE HATS
White hats are the good guys, the ethical
hackers who use their hacking skills for
defensive purposes. Sometimes they’re former
grey hats who have become security
professionals and who use this knowledge to
locate weaknesses and implement counter
measures.

4. BLACK HATS are the bad guys, the malicious hackers
or crackers who use their skills for illegal or
malicious purposes. They break into or otherwise
violate the system integrity of remote machines,
with malicious intent having gained unauthorized
access. Black hat hackers destroy vital data, deny
leg mate user’s services, and basically cause
problems for their targets. Black hat hackers and
crackers can easily be differentiated from white
head hackers because their actions are malicious.

5. GREY HATS hackers may work offensively or defensibly depending on the
situation. This is the dividing line between hackers and crackers. Both
are powerful forces on the internet and both will remain permanently.
And some individuals qualify for both categories. The existence of such
individuals further clouds the division between these two groups of
people. In addition to these groups, there are self- proclaimed ethical
hackers, who are interested in hacker tools mostly from a curiosity stand
point. They may want to highlight the security problem in a system or
educate victims so they secure their systems properly. These hackers are
doing their “victims” a favour.

6. Difference Between Hacking & Cracking
The main difference is that a hacker mostly called as
a person who attack a computer but don't do any damage
or harm but a cracker is a person who do the same thing
as hackers in the first place but the difference is in the
second part which makes them separate, cracker DO case
the damage and harms to individuals and public website
and computers but the cyber law points of view both of
them consider as a crime due to the computer crime Act
1997.