Burz writes: Invisible Things Labs has released Qubes OS 3.1. Some of the features recently introduced into this secure concept, single-user desktop OS are Salt management, the Odyssey abstraction layer, and UEFI boot support. The 3.x series also lays the groundwork for distributed verifiable builds, Whonix VMs for Tor isolation, split-GPG key management, USB sandboxing, and a host of others. Qubes has recently gained a following among privacy advocates, notable among them journalist J.M. Porup, Micah Lee at The Intercept and Edward Snowden. Embodying a shift away from complex kernel-based security and towards bare metal hypervisors and IOMMUs for strict isolation of hardware components, Qubes seals off the usual channels for 'VM breakout' and DMA attacks. It isolates NICs and USB hardware within unprivileged VMs which are themselves are a re-working of the usual concept, each booting from read-only OS 'templates' which can be shared. Graphics are also virtualized behind a simple, hardened interface. Some of the more interesting attacks mitigated by Qubes are Evil Maid, BadBIOS, BadUSB and Mousejack.
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