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Spyware is a general term used for software that performs certain
behaviors such as advertising, collecting personal information, or
changing the configuration of your computer, generally without
appropriately obtaining your consent. You might have spyware or
other unwanted software on your computer if:
• You see pop-up advertisements even when you're not on the Web.
• The page your Web browser first opens to (your home page) or your
browser search settings have changed without your knowledge.
• You notice a new toolbar in your browser that you didn't want, and
find it difficult to get rid of.
• Your computer takes longer than usual to complete certain tasks.
• You experience a sudden rise in computer crashes.
Spyware is often associated with software that displays
advertisements (called adware) or software that tracks personal or
sensitive information. That does not mean all software which
provides ads or tracks your online activities is bad. For example,
you might sign up for a free music service, but "pay" for the
service by agreeing to receive targeted ads. If you understand the
terms and agree to them, you may have decided that it is a fair
tradeoff. You might also agree to let the company track your online
activities to determine which ads to show you.
Other kinds of unwanted software will make changes to your computer
that can be annoying and can cause your computer slow down or crash.
These programs have the ability to change your Web browser's home
page or search page, or add additional components to your browser
you don't need or want. These programs also make it very difficult
for you to change your settings back to the way you originally had
them. These types of unwanted programs are also often called
spyware.
The key in all cases is whether or not you (or someone who uses your
computer) understand what the software will do and have agreed to
install the software on your computer.
There are a number of ways spyware or other unwanted software can
get on your system. A common trick is to covertly install the
software during the installation of other software you want such as
a music or video file sharing program. Whenever you are installing
something on your computer, make sure you carefully read all
disclosures, including the license agreement and privacy statement.
Sometimes the inclusion of unwanted software in a given software
installation is documented, but it may appear at the end of a
license agreement or privacy statement.
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