Traffic control

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Traffic control

How do you spell trust? Not I-P-S — at least, not if you're an enterprise security manager deploying an intrusion prevention system (IPS) for the first time. Once heralded as the "smarter" cousin of the intrusion detection system (IDS) — destined to eventually kick its kin out of the data center because of its "intelligent" ability to block, not just identify, security threats — the IPS instead has reached a sort of détente with the IDS. Rather than supplanting the IDS with an IPS, many enterprises use the two devices in complementary fashion.

But even then, they do so only after the IPS has proven itself worthy of their trust. "We see a lot of enterprises using it in basic IDS mode, and if they're blocking anything, it's just known malicious attacks," says Robert Ayoub, the principal IDS/IPS analyst in Frost & Sullivan's ...

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