Don't even think about connecting a computer to the Internet without some form of anti-spyware software installed. Spyware is as pervasive as spam. That's because the same people who break into your personal computer to install spamming software are also breaking in to install spyware. They get paid for every instance of spyware they install. Even if your system isn't compromised, spyware is bundled with so many "free" applications that it's very difficult to avoid exposure to it. That's why it is so important to run anti-spyware software.
Two main types of Anti-Spyware:
Scanners: Ad-Aware and Spybot S&D are good examples of spyware scanners. These programs look for known spyware based on definition files, much like anti-virus software. Also, like anti-virus software, spyware scanners NEED TO BE UPDATED to be effective. Without the updates, the software cannot detect the newest forms of spyware.
Blockers: Spyware Blaster and Microsoft's Defender are good examples of spyware blocking programs. Blockers are designed to prevent spyware from installing on your machine. Like scanners, blockers are dependent on definition files to identify attempted spyware installations. These definitions need to be kept up to date for the blocker to be effective. It is recommended that you update at least once a week. Further, you may need to instruct the blocker to actively block the newer threats. You can do this by using the "immunize" button.
Note, Spybot S&D has a blocking feature, as well.
Fine Print:
Please note that Ad-aware and Spybot S&D are only licensed for private, non-commercial use. Students are encouraged to download the applications and use them on their personal machines. Employees should not install this software on their University machines. Microsoft's Defender is available for institutional use free of charge. For more information about anti-spyware applications, please visit the Security Tools Page.
