as computer use becomes more common,the need for security in more important than ever.
one of the greatest security threats in online world is computer hacking.
computer hacking is the unauthorized access to a computer or network of computers.
hackers are people who illegally enter system.
they may alter or delete information,steal private information,or spread viruses that can damage or destroy files.
but how exactly can a hacker get into a system to do these things?