The Vanishing Network Perimeter
If you look back to the first uses of network security, security professionals essentially put a firewall between the corporate network and the Internet. That firewall marked the perimeter of the network. As networks became more complex, companies started finding they were connecting to the Internet in more locations, so more firewalls were installed. The perimeter remained the demarcation between the Internet and the corporate network. Today, the vanishing perimeter has been the subject of many presentations, white papers, and sales pitches, as vendors try to convince organizations to invest to protect their perimeter-less environments.
VPNs extended the internal network outside the nice, neat network perimeter ...
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