Qubes OS: A reasonably secure operating system
Qubes OS
Qubes takes security through compartmentalization to its logical end, running your activities in separate isolated VMs so a breach in one cannot reach the others. That is genuinely strong, and genuinely demanding: it needs capable hardware, a real learning curve, and patience, which is why it is squarely for experts. If you are a high-risk user willing to invest the effort, little is more rigorous; everyone else will find it more friction than their threat model needs.
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Qubes OS alternatives
Closed-source software is allowed to link to this library, but changes to the library itself must be shared under the same license.
Permits
- Commercial use
- Modification
- Distribution
- Private use
Requires
- Disclose source
- Same license (library)
- State changes
- License and copyright notice
Does not provide
- Liability cover
- Warranty
Why it matters: Weak copyleft protects the project's own files: improvements to them stay open, while the code can still sit alongside closed-source software.
Plain-language summary of the project's license, not legal advice. Read the full text for the exact terms.