Qubes OS Overview: Security Through Function Isolation Using Xen

This is why she and her team built Qubes OS, a security-focused open source operating system based on Fedora that, in essence, assumes that bugs are everywhere. Instead of running one kernel, Qubes isolates all functions into separate virtual machines using the Xen hypervisor. Each function may only access what it needs to run, thus limiting an exploit's potential damage.

Rutkowska will give a keynote talk about Linux security and Qubes OS at LinuxCon and CloudOpen Europe, Oct. 13-15 in Dusseldorf, Germany. Here she gives an overview of the project, how it uses Xen, and how it addresses common security issues.

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