well i have just finished the first course for Ciscos CCNA, so im no expert but we studied all the protocols, pro and cons, and i always asked myself: "How come they dont fix all these security flaws that TCP/IP has?" i mean i've read so many articles about all the exploits and ways to get around security, if i was leading a big enterprise that uses VPN's, email, video-conference or any other service that uses internet to communicate i would panic.

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Link to this comment: http://www.securityfocus.com/comments/articles/11306/32429#32429