Writeup from 2022 that I assume is mostly still valid. TLDR:
- Mainstream Linux is less secure than macOS, Windows, and ChromeOS. (Elsewhere: “[iOS/Android] were designed with security as a foundational component. They were built with sandboxing, verified boot, modern exploit mitigations and more from the start. As such, they are far more locked down than other platforms and significantly more resistant to attacks.”)
- Move as much activity outside the core maximum privilege OS as possible.
- OP doesn’t mention immutable OS, but I assume they help a lot.
- Create a threat model and use it to guide your time and money investments in secure computing.
Once you have hardened the system as much as you can, you should follow good privacy and security practices:
- Disable or remove things you don’t need to minimise attack surface.
- Stay updated. Configure a cron job or init script to update your system daily.
- Don’t leak any information about you or your system, no matter how minor it may seem.
- Follow general security and privacy advice.
I highly value Madaidan’s input on the matter and also their work on projects such as Kicksecure and Whonix. Furthermore, it’s clear that Desktop Linux hasn’t been able to combat all the pain points that were mentioned in the article. However, we’ve definitely come a long way since and there’s lot to be optimistic about; secureblue to name a thriving project.
But, while I appreciate how the article continues to draw awareness to the fact that Desktop Linux isn’t as secure as some like to think, the write-up is ultimately bound to be (severely) outdated at some point. And, perhaps, we might already be past the point in which it does more harm than good…
Anyhow, I’d like to take this opportunity to promote a platform that actually continues to deliver up-to-date articles about security on Linux: https://privsec.dev/posts/linux/
Time to distrohop again. Kubuntu’s been irking me for a while and that guide says it’s insecure and CachyOS (though I don’t like the default software suite) has been nice. Though I need to find an alternative distro (don’t trust Red Hat, had a bad experience with OpenSUSE, don’t have the patience to learn Arch).