Not too long ago, guarding access to the network was the focal point of defense for security teams. Powerful firewalls ensured that attackers were blocked on the outside while on the inside things might get “squishy,” allowing users fairly free rein within. Those firewalls were the ultimate defense—no one undesirable got access.
Until they did. With the advent of cloud computing, the edge of a network is no longer protected by a firewall. In fact, the network no longer has an edge: in our work-from-anywhere environment in which any data center is now a boundary, we can no longer rely on traditional protection mechanisms. Security has become more about protecting identity rather than the network itself.
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