2. What is a computer virus?
-Shares traits of a biological virus in people.
-Computer viruses pass from computer to
computer just like a virus does from person to
person.
-A computer virus attaches itself on top of
programs or documents in order to get executed.
-Once the virus is up and running it is able to
infect other programs or documents on the
computer.
3. Most commom types of
infection
1. Virus
2. Email virus
3. Worms
4. Trojan horse
4. viruses
Viruses are just small pieces of
software that attaches on programs.
Every time that specific program runs,
the virus runs too and has the chance to
reproduce.
5. Email viruses
Email viruses move around in
email messages.
They are able to mail
themselves to anyone that is in
the users address book.
6. worms
Worms are a piece of
software that use computer
networks and security holes
to replicate itself.
7. Trojan horses
Trojan horses are disguised as
computer programs (such as a game).
When it is used, it causes damage and
may erase information on the computer.
Trojan horses do not have the
capability to replicate themselves.
9. Protection on unsecured
operating systems
1. Buy virus protection
2. Avoid programs from unknown
sources (like the internet)
3. Stick with purchased software on
cd’s and not dowloadable software.
10. Protection on Emails
1. Don’t open unknown emails.
2. Make sure that macro virus
protection is running in all applications
on the computer.
