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The Internet can be a vicious place The World Wide Web is an excellent source for information shopping online email online games or to just browse through and find what youre looking for The Internet has become a vast marketplace for global goods and services But in order to feel safe about transmitting credit card numbers and other financial information all online transactions should be secure Hackers are one of the many problems for millions of Internet surfers today Because information traveling over the network actually passes through many computers along the way there is an opportunity for someone to intercept confidential information hackers also break into computers to steal stored data Buying merchandise over the Internet requires payment usually by a credit card number Hackers can seek the opportunity to intercept this This is why you should be aware of the potential danger of giving this confidential information away If you access your computer with a dial up network the chances are slim but dont assume that your desktop PC wont get hijacked because this is increased if left unsecured Most hackers thrive for bigger and larger business like corporate and government computer systems But these large businesses protect their systems erecting a firewall an extra layer of security placed between internal computers and the Internet Which use several techniques to identify check and filter packets going in and out of your PC This keeps intruders from receiving stored data But when online shopping and dealing with merchants the best security for you is common sense Hiding is also the easiest and least expensive defence against intrusion attacks You can hide on the Internet by NAT This technique camouflages your network system with IP addresses that cant be seen from other computers online You can also protect the privacy of your electronic communications by using encryption a form of cryptography Encryption requires special software to encode your email or
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