Networks are as integral to business today as paperclips and coffee. Everyday, data within shopping carts, employee records, bank records and more gets passed across networks worldwide. Whether it's an e-mail from the other end of the office or a financial transaction across continents, proper network security is essential. In the CompTIA Security+ tutorial, VTC Author Paul Wolfe guides you through every level of network security. Not only the information needed to pass the certification test, but also knowledge you will need to protect yourself and your clients. To begin learning now, simply click one of the Security+ links.