In recent years, due to the proliferation of low cost mobile devices like notebook/netbook computers and Wi-Fi phones, more and more people use these devices for communication and Internet access via the wireless networks. However, wireless networks are insecure by nature. In wireless networks, data ...

A good password is easy to remember but hard to crack. It should be long (at least 8 characters, 14 characters or longer is ideal), complex (include a combination of uppercase and lowercase letters, numbers, and symbols), difficult to guess (appear to be totally random to anyone except you), and ...

Introduction World Wide Web is growing extremely fast in the past few years. Counting only the number of new websites responding to an online web server survey has already recorded an increase of 2,137,329 in June 2009 (a jump from 235,890,526 to 238,027,855). The actual number of websites in the ...