Recently, I wrote about Network self-vaccination, the idea to model network defense after the biological immune system. I argued that even the existing network infrastructure elements can be used for a dynamic security defense, if used in conjunction with intelligent anomaly detection solutions that are properly deployed and equipped with certain advanced analysis features.
Today now, Ellen Messmer writes in the Network World magazine's own blog about the vanishing perimeter, and how an organization called The Jericho Forum thinks that the perimeter is gone, and that firewalls are obsolete and posibly a bad idea anyway.
I think that modern security architectures are needed in responses to modern threads. But I also have to agree with Ellen Messmer and think that it is way too early to declare firewalls outdated.
We at Esphion have always maintained: A secure network needs more than just firewalls. But that does not mean that the firewalls should be thrown out. Our position is that with the arrival of intelligent anomaly detection solutions, such as Esphion's netDeFlect, it is possible to extend the useful life of firewalls, routers and switches, and make them part of an adaptive, dynamic overall security approach.
Juergen
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