Virtualization brings real security benefits, but only when VMs are managed carefully. A common assumption is that anything inside a VM is automatically safe. In reality, each guest is a full computer that can be attacked, infected and misconfigured like any other, and the hypervisor itself becomes a high-value target because it controls every VM on the host. Good VM security therefore works in layers: protect the hypervisor and host, configure isolation sensibly, and manage each guest as carefully as you would a physical machine.
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