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Rev

Thank you very much Merek for your thorough answer. I have two follow up questions. Is there a better tool than virtualbox that would provide full isolation? Also "Attacker with root access" would this be root access on the guest? If not and you mean the host it seems you have already lost the battle.
– nomadicME
Commented Jun 21, 2017 at 20:12
@nomadicME yes i meant the host, but the battle is naturally lost for both cases. Full separation from host isn't possible as far as i'm aware. You can, however, fully isolate two guests - for example when running both of the operating systems in a Type 1 hypervisor like Xen or WMware (VirtualBox is type2). In this case root access on either of them won't allow attacker to reach the second...
– Marek Rost
Commented Jun 21, 2017 at 22:55

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