What is a computer spyware?

Spyware comes in various forms, but basically it is a program or piece of information on your computer that either sends data about you or your computer habits to someone else on the Internet. This can be a company that is collecting data, or a thief seeking to gain access to your computer or steal data like bank information on it. Spyware can also be a program that places unwanted ads on your computer. Cookies can be considered spyware. They are little piece of information placed in your web browser to track your web habits. This is useful sometimes as a web site can see you have visited it before and let you on without a registration process. Cookies are also used to keep track of your progress through a web store. They are also used to customize website ads to your likes and dislikes.