VirtualBox/Security and Support Status
VirtualBox does not have a dedicated maintainer. Whonix VirtualBox support is a remnant from an earlier development period, when no other supported platforms were supported. VirtualBox images are still built by Whonix lead developer Patrick Schleizer, but development efforts have shifted to Qubes.
Although VirtualBox is given less developer attention, grave security issues are unlikely due to the Whonix design. Rudimentary testing of new images and updates is still performed by Schleizer on a Debian host and by Ego on a Windows host. Also, no member of the Whonix team is currently testing Whonix VirtualBox images on Mac hosts, which means progress on the VirtualBox development task list will be slow. For these reasons, VirtualBox is considered to provide a "Production" level of security on the Windows and Linux platforms, but has only received an "Experimental" label for macOS.
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