this post was submitted on 28 Sep 2023
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Actually, thinking more about this...
Can you give an example of this grub cmdline bypass? If what you're saying is true, this would be a huge issue. I'd switch bootloaders over something like this.
You can disable editing and enable password in grub, done. That's the recommended proceedure for TPM boot.
Finally, someone reasonable.
You can google lets drop all the crap you think you understand but don't use simple logic. Unencrypted data isn't secure against physical access. If your data is automatically unencrypted without benefit of entering a passphrase then its not actually secure. There's no free lunch.
Lol, holy hostility, Batman.
I know there's no such thing as a free lunch. That's why I purchased a TPM for my machine. Anyway, if your intent is to prevent someone from sticking your HDD into another machine to extract your data, FDE ticks that box. If you're worried about highly advanced attacks to find your kiddie porn collection, then you probably are justified in your paranoia.
Security is about understanding reasonable threat models. 99.99% of reasonable threats to your machine involve theft or loss of the entire machine and personal data or accounts being accessed. This doesn't require advanced attacks or paranoia nor does it require extreme measures to protect against. No installer will create such a configuration without a passphrase because its a simple and effective step to take to protect your data that is enforced by systems created by people who are all smarter than you.
Your cute statement about child porn is tasteless and thoughtless. I don't take reasonable precautions like taking 5 seconds to type a password because I'm paranoid or criminal I do so because I have basic common sense.
"Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say." https://en.wikipedia.org/wiki/Nothing_to_hide_argument
A thief is going to steal your computer and gut it, not apply liquid nitrogen to your RAM and attach a bunch of instruments with hopes of extracting a crypto key so he can have a small chance at accessing potentially interesting data.
If you think a thief is going to do more, your threat model is very skewed. I suspect that you think you're much more interesting than you actually are.
But it was cute.
You asked for details and pick on the unlikely measure of cold boot but ignore the fact that in most configurations you can press the letter "e" to edit the boot up command line. It wasn't "cute" it made you look like a gross human being.
Lol, whatever.