Hackers are people who break into Network systems in an attempt to steal confidential data and or misuse your system.

Hackers attacked some of Americas most popular Web sites in the past, walling off frustrated consumers from companies that provide news and stock trading. The attackers blocked Web sites such as Yahoo, eBay, Amazon, CNN.com, and Buy.com.

Hackers are often intrigued by the challenge of simply breaking into a server. Ideally, they want to create a back door, undetected, that will enable them to leave behind a program to sniff out and collect passwords (Administrator is preferred) for later collection, or permit them to revisit the server so they can use it to launch an attack on another server.

Over the past 12 years, the growth of incidents reported has roughly paralleled the Internet growth. As e-commerce sites become attractive targets and the emphasis turns from break-ins to denials of service (DoS), the situation will likely worsen.