What is spyware and how does it operate?

What will be an ideal response?

A spyware program sends information from the infected computer to the person who initiated the spyware program on your computer. This information could be confidential financial data, passwords, PINs-just about any data stored on your computer. You need to make sure your users understand that this information collection is possible and that spyware programs can register each keystroke entered. It's that simple. This type of technology not only exists, but is prevalent. It can be used to record and send everything a user enters to an unknown person located halfway around the world.