[bgwhn]

> What is the alternative to using Virtualbox

Any other hypervisor. QEMU/KVM, Xen, VMWare, and Parallels all have good track records.

[sedachv]

Xen doesn't: https://www.cvedetails.com/vulnerability-list/vendor_id-6276...

[TheDong]

Xen has a very responsible track record; they communicate clearly the scope and detail of vulnerabilities.

This skews the CVE stats significantly since the kernel developers (aka kvm) rarely actually request CVE ids.

[bonzini]

Ehm, I always request CVE ids. KVM has had no serious VM escape in quite some time.