The Guardian's Deep Dive into Qubes OS: A Secure Solution for Whistleblowing and Journalism
Briefly

Qubes OS offers an alternative to separate air-gapped machines, utilizing offline virtual machines, or 'Qubes,' to handle sensitive messages.
The team's goal with Qubes was to create an offline, Debian 11-based Virtual Machine that could be reset to a known state after each restart, removing any generated or downloaded data.
Read at InfoQ
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