Of the many computer security measures available to end users, none is more confusing to the novice than the firewall.

Instant messaging, the popular method of typing online conversations in real time, poses serious security risks.

Computer security is important for home users just as much as it is to any corporate or government network. You probably wouldn't let a stranger look through your important documents. In the same way, you may want to keep the tasks you perform on your computer confidential, whether it's tracking your investments or sending email messages to family and friends.

Information security is concerned with three main areas. These include confidentiality, integrity and availability.

Computer security is the process of preventing and detecting unauthorized use of your computer.