In Pictures: 13 of the biggest security myths busted

13 myths about information-technology security you’ll hear but should you believe?

Martin Roesch, founder of Sourcefire, says security defense too often is limited to catching or not catching any type of attack, and if it's missed, that defense "practically ceases to be a factor in the unfolding follow-on activities of an attacker." A newer model of security operates continuously to update information even if the initial attack on the network is missed in order to understand the scope of the attack and contain it.

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