Implementing virtualization within the enterprise grows easier with each new version of the virtualization products available on the market. But in implementing virtualization itself, the enterprise adds a set of security risks that are not immediately obvious. Residing virtual machines atop a singular hypervisor puts every virtual egg in a single basket. Virtual machines that experience extended periods of outage may not receive the configuration updates they need to keep them safe. Virtual networks may not provide the level of functionality required by enterprise organizations. All these are topics discussed in this series along with suggestions for solutions that work alongside virtualization platforms to combat these security issues.