Definition of Spyware
Spyware is different from a virus because it doesn't delete files or stop your computer from working. Instead, it spies on you, collecting data like passwords, bank details or simply reporting what websites you've visited. Spyware runs silently in the background, using your computer's resources and your internet connection - making your computer run much slower than it usually does.
You can avoid Spyware by taking precautions when browsing the internet. If a pop-up appears on screen offering free stuff, don't click on it. Try to keep away from file-sharing programs as these are one of the biggest sources of spyware on the internet. What looks like a new song or program could actually be spyware in disguise.