computer user worldwide has encountered a computer virus. According to Trust and

Estates Magazine, “In the world of technology, viruses are computer codes that changes

files or applications on a computer without the knowledge or consent of the computer

user.” (Trusts and Estates, 12)

Viruses are designed for and can operate on all computer systems be it DOS,

Windows, or Macintosh. They can be designed to remain unseen on a computer system,

then become active on a designated date, or when a certain action is performed.

Unexplained phenomenon such as a message flashing across the computer screen can be

caused by a virus. In an extreme case, a computer virus can render your hard drive

inoperable. Often, when some computer files come up missing, or a computer locks up, a

virus is to blame for the problem. Unknowingly, e-mail addresses can be affected and

even used for reproduction by viruses. (Trusts and Estates, 12-13)

The common term “computer virus” is actually a generic term used to describe all

virus software can save you time, money, and possibly your entire

A blended threat is what you get when you take a Trojan horse, worm, and a virus and

A worm can remove information on a hard drive, which can cause programs to

up to 87% of all viruses found in 2002 (Fig. 2) (PestPatrol 2; Verton 22).

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