Spyware, the worst form of malware with the potential to steal your identity, does a good job of hiding itself so that you cannot simply look on your computer and see if you have any spyware programs installed. Because of this, in order to find out if your computer is infected with spyware, you have to look for signs that there is some type of spyware that is affecting your system, so that you can quickly do something about it before your personal data has been stolen.