1.2. Why Virtualization Security Matters

The host and hypervisor become prime targets; they are often a single point of failure for guests and data.

Virtual machines can interfere with each other in undesirable ways. If no access controls are in place to help prevent this, one malicious guest can bypass a vulnerable hypervisor and directly access other resources on the host system, such as the storage of other guests.

Resources and services can become difficult to track and maintain; with rapid deployment of virtualized systems comes an increased need for management of resources, including sufficient patching, monitoring and maintenance.

Resources such as storage can be spread across, and dependent upon, several machines. This can lead to overly complex environments and poorly managed and maintained systems.

Virtualization does not remove any of the traditional security risks present in your environment; the entire solution stack, not just the virtualization layer, must be secured.