"The challenges virtualization presents data center staff are analogous to what many network operation teams now face: how to secure a growing, mobile and diverse population of new devices flooding the enterprise. Instead of dealing with new wireless and mobile devices popping on the network, administrators face a virtualized sprawl of new server IP addresses and machine names appearing and moving around the network—sometimes on a daily basis. This introduces new risks.  It is critical for enterprises with plans to spin up large amounts of virtual machines to have a security strategy for virtualization."