Explain Spyware
Spyware is a type of computer program that is often considered malware or a malicious program similar to a computer virus; spyware is typicality add-on software that comes with other, possibly legitimate and useful programs.
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Function
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Spyware can serve a variety of functions that may detract from computer performance or constitute a security threat such as sending personal information to external sites, tracking web traffic, or creating ad pop-ups.
Effects
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Any unnecessary processes running on your computer will use up system resources, meaning spyware can make your computer run slower; it may also change system settings, which can be annoying, especially if you don't know how to change them back.
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Legality
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Spyware is not necessarily illegal for software developers to spread, and oftentimes users may inadvertently agree to install spyware by accepting user agreements without reading them thoroughly.
Prevention
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It is important to be careful when installing any software and to read all user agreements carefully to be sure you aren't installing or agreeing to install spyware; reading user reviews of software can also be helpful.
Removal
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Spyware can often be removed using a standard antivirus scanner; supplemental malware scanners designed specifically to remove spyware and adware can also help remove spyware that antivirus programs cannot detect.
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