One the most common questions I get from friends and customers is, “What is a Computer Virus?” The short answer is, “A computer virus is a small program that is designed to interfere with the operation of your computer. The more difficult question is, “Why?” That unfortunately is a much more difficult question to answer. Why does anyone do malicious things? Some reasons include:
Computer viruses are unwanted computer programs that can invade your hard drive and cause many different types of damage. Usually viruses are created when someone writes a computer program and embeds harmful software within that program. As soon as other people begin downloading that infected program onto their computers, the virus finds it’s way in and negatively alters information stored in the computers.