What is a Computer Hacker? These days, a hacker doesn't have to be a geek from a top university who breaks into high profile banks and government systems. A hacker can be anyone, even the kid next door. Anyone can download a simple software off the Internet to see everything that goes into, and out of, a computer on a the same network. And people who do this don't always have the best of intentions. So just imagine how exposed you are when you use WiFi in a public hotspot. Everybody in that very same hotspot are all on the same computer network. Firewalls and anti-virus can't stop this new type of hacking, called sniffing, but PRIVATE WiFi can. Learn more about how to protect yourself against hackers.