There are hundreds of computer hackers looking to hijack your personal information when you are connected to the internet. In many cases they do this by sending fake emails and instant messages requesting your login and passwords to sites that store sensitive personal information (or "Personal Identifiable Information"). Never reveal that information over email or instant messanger, furthermore, never click on a link in an email or on the internet that you don't recognize. This is how a virus can spread from machine to machine. Also, never install something on your computer that is from a software vendor or website you don't trust.
