The Evolution of Network Architectures

While virtual networks have their benefits, they don’t traditionally provide strong perimeter protection for external traffic. For a long time, companies have depended upon just Virtual Networks, with firewalls strategically placed, to provide firm security boundaries. In the industry, this is sometimes called the “M&M Security model” or “Armadillo network,” which implies that security is very hard on the outside perimeter. Still, when attackers breach the outer perimeter, they find the inside incredibly soft and vulnerable.

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