Why Is Spyware Bad?
Spyware describes a type of potentially harmful computer program that can carry out various actions such as tracking or "spying" on a computer user's activities. Unlike computer viruses or worms, spyware may not necessarily attempt to damage a computer systems data, but it can cause other problems and annoyance. If you suspect that your computer is infected with spyware, it is important to attempt to remove the threat to ensure optimal computer performance.
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Function
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Spyware programs are often designed to try to get a computer user to spend money or to gain access to personal or financial information. Spyware is sometimes bundled with software programs that may or may not serve their purpose properly. For example, a website offers a free download claiming to be a free antivirus program, but when you download and install the program, it installs spyware that creates pop-up advertisements or fake virus detections to force the user into signing up for a paid subscription for the program.
Effects
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A spyware infection can have many effects on a computer. It can cause constant pop-ups of different kinds while online or off-line. It can rearrange your user interface or change system settings and may create new toolbars or icons on your desktop or in your Web browsers. According to Microsoft, even if you readjust your settings to meet your preferences, you might find that they are altered again after you restart your computer. Spyware can interfere with the normal operating of a Web browser, such as forcing Internet searches to load a specific website or changing your homepage.
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Performance
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The processes carried out by spyware in the background can slow system performance. Spyware programs may not be designed with efficiency in mind, so some use a considerable amount of system memory and processing cycles, which can limit multitasking capability.
Solution
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Spyware infections can often be resolved by using antivirus and antispyware software tools. Most antivirus utilities and general security suites include antispyware capabilities.
Considerations
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Users often load spyware onto their own computers inadvertently. Being judicious about the data you download and the programs you install on your computer can help prevent spyware infection. Similarly, avoiding emails and email attachments from people that you do not know can help prevent malware infection.
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