Qubes is an open source operating system designed to provide strong security for desktop computing. Qubes is based on Xen, X Window System, and Linux, and can run most Linux applications and utilize most of the Linux drivers.
In the future it might also run Windows apps.
>> Key architecture features:
Based on a secure bare-metal hypervisor (Xen)
Networking code sand-boxed in an unprivileged VM (using IOMMU/VT-d)
No networking code in the privileged domain (dom0)
All user applications run in “AppVMs”, lightweight VMs based on Linux
Centralized updates of all AppVMs based on the same template
Qubes GUI virtualization presents applications like if they were running locally
Qubes GUI provides isolation between apps sharing the same desktop
Storage drivers and backends sand-boxed in an unprivileged virtual machine(*)
Secure system boot based on Intel TXT(*)
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