- Install anti-virus on the host computer and on each virtual system
- Install anti-virus only on the host computer
- Install anti-virus only on the virtual systems
- Install anti-virus on only one virtual system
When working with virtualized operating systems, it is important to remember that a virtual OS needs security management just as much as a hardware hosted OS. Most of the same security concerns and hardening operations need to be performed on virtual OSes as they are on host OSes. This includes the installation of updates, a host firewall, and local anti-virus scanning software.