Introduction :
Nowadays, almost every home has at least one computer, either desktop or laptop. Most of them have internet connection especially in developed countries. A computer is not a luxury need for people anymore as it used to be back in 1970s. One can get a computer that has more power, performance, memory, and disk storage than a computer bought in 1980s. Thanks to the technologies used to build the computer and the innovations in computer design that make this possible. The nature of computing has been changed over the last few years. As computers have become cheaper and more powerful, the more people are able to buy a computer. Many companies start depending on computers to do their business. Unfortunately, these changes also have disadvantages. One of the negative effects of these changes is computer crime has became a serious threat to home user and companies. One of the biggest crimes is phishing.