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Kicksecure vs Qubes OS: catalog facts
Kicksecure	Qubes OS
Free The open-source system is available without a license fee.	Free The open-source system is available without a license fee.
Linux	Linux
Extensive hardening applied by default rather than left as an exercise An existing Debian install can be converted rather than reinstalled	Compromise of one qube does not reach the others, by design Networking and USB are themselves isolated in dedicated qubes
Hardening breaks some software and needs exceptions Not an anonymity system; that is what Whonix adds on top	Demanding hardware requirements and a strict compatibility list Day-to-day use requires changing how you think about files and applications
Operating system, Downloadable app	Operating system
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.