Nowadays, the computer and the Internet play huge roles in running businesses, whether it is at-home, small, medium or large enterprises. The computer and the Internet is used in marketing and presenting the products, studying the market, interacting with clients and most of all conducting transactions with clients or business partners. With the great importance of Internet and computer in running any business, clearly there is a huge importance of securing the network particularly those networks where sensitive and important data has been stored. In fact, it is very common in every news headlines, publications or televisions that computer networks
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