The meaning of Hacker is one who accesses a computer which is supposably not able to be accessed to non .
authorised people of the community. Hackers may use any type of system to access this information .
depending on what they intend on doing in the system. .
Methods .
Hackers may use a variety of ways to hack into a system. First if the hacker is experienced and smart the .
hacker will use telnet to access a shell on another machine so that the risk of getting caught is lower than .
doing it using their own system. .
Ways in which the hacker will break into the system are: .
1) Guess/cracking passwords. This is where the hacker takes guesses at the password or has a crack .
program to crack the password protecting the system. .
2) Finding back doors is another way in which the hacker may get access to the system. This is where the .
hacker tries to find flaws in the system they are trying to enter. .
3) One other way in which a hacker may try to get into a system is by using a program called a WORM. .
This program is specially programmed to suit the need of the user. This programme continually tries to .
connect to a machine at over 100 times a second until eventually the system lets in and the worm executes .
its program. The program could be anything from getting password files to deleting files depending on .
what it has been programmed to do. .
Protection .
The only way that you or a company can stop a Hacker is by not having your computer connected to the .
net. This is the only sure fire way in which you can stop a hacker entering your system. This is mainly .
because hackers use a phone line to access the system. If it is possible for one person to access the system .
then it is possible for a hacker to gain access to the system. One of the main problems is that major .
companies need to be networked and accessible over the net so that employees can do overdue work or so .
that people can look up things on that company.