Analysis: The network is the security
This was an era when standalone IBM mainframes and VAX minicomputers dominated the computing landscape. Each system ran an application or two for a specific constituency. Application and data integration was so cumbersome that few companies had the skills, budgets or stomachs to attempt it. Mainframes and minicomputers were truly data-processing islands.
Fast-forward to 2004, and network security looks a lot like the host-based computing landscape of the early '80s. Network security is based on scads of individual boxes and limited integration. What's more, network security isn't really part of the network; rather, it is an overlay on top of the network. Talk about inefficiency!
By Jon Oltsik at Silicon.
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