You have likely heard the term 'spyware' before. A spyware program is like a virus, but usually smaller in size and more annoying than malicious. However, spyware programs get their strength from sheer numbers. Most spyware programs are automatically downloaded when you visit unsecured Web sites, click pop-up windows, or use third-party downloading software.

 

The majority of spyware programs are designed to start when you boot your computer. At a certain point in time, (for example, 10 minutes after you have started your computer), a spyware program might mimic a Windows error dialog box, usually prompting you to visit a Web site and purchase something in order to "help remove this threat from your computer." If you are not careful on the Internet, you computer can become clogged very quickly with more and more spyware programs. These programs can literally cripple even the most powerful computers due to the sheer amount of spyware than can accumulate.

 

Anti-spyware programs work just like antivirus programs, scanning your computer for malicious or unrecognized files. There are many different programs available, some which are free and some which you need to pay a monthly or yearly fee to use. Most anti-spyware programs are designed to be a prescription to spyware problems, not a preventative measure. The best way to avoid spyware is to avoid clicking pop-up windows if possible and never opening any e-mail you do not recognize.