Qubes OS: A reasonably secure operating system
qubes-os.org
Qubes OS: A reasonably secure operating system
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Re: Qubes OS: A reasonably secure operating system
#2When interacting remotely with untrusted services, apps, or documents, Qubes cannot be beaten.
However, if I was afraid of my laptop getting attacked with an evil maid attack, I’m sticking with my Mac, Secure Boot, and FileVault; so that my Lock Screen is less likely to be patched against me. If I’m afraid of persistent malware, I want a platform that isn’t necessarily game over if the malware gets sudo privileges once. If I’m afraid of PIN guessing attempts to break in by brute force, I want something like a modern iPhone where the guessing limit is hardware enforced, not a Linux phone where it’s software enforced.
Same for if I were in a country with a hostile government. Nothing screams “I’m hiding something and I’m malicious” like using GrapheneOS or Qubes in Russia or China. They might not see your work, but the uncommon choices by itself makes you suspect. An iPhone and Mac over there suggests wealth, and would possibly socially increase your benefit of the doubt due to white collar associations; GrapheneOS and Qubes would shred all benefit of doubt you may have enjoyed.
I sometimes think of the Tor incident at a US College. I’m not encouraging this behavior, but a college student sent bomb threats to his university. He was identified, arrested, and convicted because he was the only one using Tor on the university network. A perfect example of how the “more secure” thing used without strategy can shoot yourself in the foot.
The point is: If you are reporting on military activity in the Donetsk region, don’t be the only person in the area using Qubes and Tor. Don’t be the only person in the area with a phone pinging GrapheneOS update servers, or a laptop pinging Qubes package repositories. Heck, don’t be the only guy with a phone on the cell network identifying as Android that inexplicably never talks to Google.
Re: Qubes OS: A reasonably secure operating system
#3I think it would be good to make it possible to deactivate certain security features such as strict graphics isolation so that users can adjust their settings to their risk acceptance level. It would also be interesting to be able to optionally replace Xen with lighter isolation mechanisms, even if the user would compromise on security here too.
Re: Qubes OS: A reasonably secure operating system
#4I would say, a little more hesitantly, that it deeply depends on what you are doing. When interacting remotely with untrusted services, apps, or documents, Qubes cannot be beaten. However, if I was afraid of my laptop getting attacked with an evil maid attack, I’m sticking with my Mac, Secure Boot, and FileVault; so that my Lock Screen is less likely to be patched against me. If I’m afraid of persistent malware, I wa…
Re: Qubes OS: A reasonably secure operating system
#5I would say, a little more hesitantly, that it deeply depends on what you are doing. When interacting remotely with untrusted services, apps, or documents, Qubes cannot be beaten. However, if I was afraid of my laptop getting attacked with an evil maid attack, I’m sticking with my Mac, Secure Boot, and FileVault; so that my Lock Screen is less likely to be patched against me. If I’m afraid of persistent malware, I wa…
https://www.qubes-os.org/doc/anti-evil-maid/
Re: Qubes OS: A reasonably secure operating system
#6Re: Qubes OS: A reasonably secure operating system
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#8Re: Qubes OS: A reasonably secure operating system
#9Earlier quoted context omitted.
https://www.qubes-os.org/doc/anti-evil-maid/
AEM is a little sketchy though, you need to trust a flash drive to hold it, and make sure that drive doesn’t get overridden by a malicious attacker. Your link goes more into depth about the disadvantages
In other threat models, laptops/tablets/phones could be physically secured in a safe, or kept under direct physical supervision.
Re: Qubes OS: A reasonably secure operating system
#10QubesOS was my main driver for a couple of years, but I have to say that the low battery life compared to only software rendering got pretty annoying after a while. Depending on the hardware, you'll need to possibly disable certain options in the BIOS/UEFI, like for an t490 that I documented: https://groups.google.com/g/qubes-users/c/Z0Kfm53zMxQ/m/IV-A...