Cisco Systems and Microsoft are headed for a collision over network security, with customers caught in the middle.
The two companies have each proposed competing "end to end" security architectures, marking the latest evolution in network defense--an approach concerned not only with scanning for viruses but also with policing networks to deny connections to machines that don't conform with security policies. But for now at least the twin offerings are not interoperable. That means customers might be forced to choose between using technology from one company or the other, unless the two tech giants can strike a deal to guarantee compatibility.
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