Qubes OS

A reasonably secure operating system for personal computers.

[Qubes OS @QubesOS]

We’re proud to announce that @nitrokey has joined as a Qubes OS Summit 2026 Silver-tier sponsor! In addition, with the conference nearly a week away and on-site tickets over halfway gone, this serves as our last call for tickets!

https://t.co/a0qVbdq7jm

[Qubes OS @QubesOS]

The @starlabsltd StarFighter is Qubes certified!

https://t.co/7cYtkXlGm1

[Qubes OS @QubesOS]

The @starlabsltd StarBook Horizon is Qubes certified!

https://t.co/h5JARHMsKN

[Qubes OS @QubesOS]

XSAs released on 2026-10-13

https://t.co/WyCVIFD2Mk

[Qubes OS @QubesOS]

XSAs released on 2026-10-09

https://t.co/ewbJKerrq2

[Qubes OS @QubesOS]

QSB-120: Two CTAP proxy vulnerabilities

https://t.co/U7txHbkLMd

[Qubes OS @QubesOS]

Qubes OS 4.3.2 has been released!

https://t.co/Cm1lGHsPQO

[Qubes OS @QubesOS]

We're proud to announce two new Qubes OS Summit 2026 sponsorships: @FreedomofPress as a Gold-tier sponsor and @NovaCustom_EU as a Silver-tier sponsor! We're also pleased to share the official conference schedule, including a list of sessions and speakers.

https://t.co/rtSsIgyuO1

[Qubes OS @QubesOS]

Qubes OS 4.3.2-rc1 is available for testing

https://t.co/H9ev3Kwgyx

[Qubes OS @QubesOS]

QSB-119: Potential attacker-controlled format string in qvm-open-in-vm

https://t.co/cxfSM09ZK3

[Qubes OS @QubesOS]

Qubes Canary 048

https://t.co/NLxMT4nfsl

[Qubes OS @QubesOS]

XSAs released on 2026-09-08

https://t.co/okUG2HNK41

[Qubes OS @QubesOS]

QSB-118: Dom0 arbitrary code execution in qvm-copy-to-vm error reporting

https://t.co/8Um1GiZL8m

[Qubes OS @QubesOS]

QSB-117: Intel CPU firmware vulnerabilities

https://t.co/DHznQw5KI2

[Qubes OS @QubesOS]

Qubes OS Summit 2026: Proposals closing soon; tickets still available!

https://t.co/xYL9xEpp3G

[Qubes OS @QubesOS]

XSAs released on 2026-07-28

https://t.co/vvnNxzNOpE

[Qubes OS @QubesOS]

QSB-116: Multiple Xen issues (XSA-500, XSA-505, XSA-506, XSA-507)

https://t.co/ydFIrelVF8

[Qubes OS @QubesOS]

Templates are now available for @fedora 44

https://t.co/UQ3Ze24fVY

[Qubes OS @QubesOS]

Tickets are now for sale and speaker proposals are now open for Qubes OS Summit 2026!

https://t.co/I6WICuvK1A

[Ihtesham Ali @ihteshamali]

Edward Snowden recommends this operating system to journalists, activists, and anyone whose computer could be used against them.

It's called Qubes OS, and it's free.

A Polish security researcher named Joanna Rutkowska built it.

In 2006, she walked onto a stage in Las Vegas and showed a room full of hackers something that shut the whole place up.

She had built a way to take over a computer completely, using the hardware itself, without the operating system ever noticing it happened. People called it Blue Pill.

A few years later she asked herself the opposite question. If a computer can be silently taken over like that, how do you build one that survives being attacked anyway?

Her answer was Qubes.

Instead of trusting your whole computer as one single space, Qubes splits it into many separate little computers running side by side, each one sealed off from the others. Open your banking site in one. Open a sketchy email attachment in a different one.

If the attachment turns out to carry malware, it wakes up alone in its own sealed box with nothing else to touch.

Some of those boxes are built to disappear on purpose. Open a suspicious PDF in a disposable one and the moment you close it, the whole thing gets erased and rebuilt from scratch the next time you need it, malware included.

In 2016, Snowden tweeted about it directly: "It's what I use, and free. Nobody does VM isolation better."

Whonix, the anonymity system built entirely around Tor, actually runs as one of the isolated boxes inside Qubes.

That's the exact combination Snowden pairs together for the strongest privacy setup he trusts on his own hardware.