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Just about every Windows and Linux device vulnerable to new LogoFAIL firmware attack
(arstechnica.com)
this post was submitted on 06 Dec 2023
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So, does disabling the boot logo prevent the attack, or would it only make the attack obvious?
Usually you can, though the setting might be listed under something like "show diagnostic during boot".
If you have access to replace the logo file, you probably have access to enable it as well.
Not necessarily, I guess. They're talking about a firmware upgrade of sorts, and, at least on the machines I own(ed), performing it didn't reset user settings (which disabling the logo is)