Spyware as many think is a virus that plagues the internet users, but actually it is computer software, that can stealthily monitor your computer and your internet use. Once it is installed surreptitiously on a personal computer it will intercept or take partial control over the user’s interaction with the computer and that too without the consent of the user.
Further understanding the spyware, reveals that it not just secretly monitors the user’s behavior but also collect various types of personal information like Internet surfing habit and sites that have been visited by the user. Moreover it can go worse by interfering with the user’s control of the computer like installing additional software, redirecting Web browser activity, accessing
Websites blindly which will be an open invitation to more harmful viruses or diverting advertising revenue to the third party.
This is not the end Spyware can go to the extent of changing computer settings, which may result in slow connection speeds, different home pages and loss of internet and other programs.