Most computer users today are familiar with the term spyware because they or someone they know has experienced the aggravation of this software firsthand. Sluggish computer performance, altered home pages, and endless pop-up ads are all signs your PC could be infected. Everyone who uses a computer is susceptible.
Spyware is a program installed on your computer, with or without your permission that can change system configurations, monitor your Internet activity and broadcast the information back to an outside party, often advertisers. The milder forms of spyware are simply annoying, with increased spam and unwanted pop-ups; these are known as adware. Malware refers to more malicious programs that can rob your PC of its ability to run efficiently. The newer, more advanced forms can actually steal personal information like bank passwords or credit card numbers.
Spyware has often been referred to as a virus, but this is not accurate. The software does not duplicate itself like a virus, which is why it is never detected when an anti-virus program is run. The best protection for your computer is a 3-tiered approach: spyware detection (anti-spyware) software, anti-virus software, and a firewall.
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