The critical point of security leverage in a virtualized environment is within the hypervisor itself, not behind it. A security solution plugged into this important layer could potentially shield all virtual servers behind it. Virtualization means even more demands for dynamic security solutions that understand all protocols, all application and OS vulnerabilities in the "Virtualsphere", that are capable of immediately neutralizing polymorphic attacks. The answer to the security challenges of virtualization: dynamic solutions like virtual shields that can decode protocols (understand application logic) and protect against attacks on known vulnerabilities percolating behind the hypervisor layer as new virtual servers are created and moved.
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