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Found in the wild: The world’s first unkillable UEFI bootkit for Linux
(arstechnica.com)
This is a most excellent place for technology news and articles.
I meant BIOS is way more limited in scope than UEFI and that's a good thing.
Although since the limitation was most likely due to hardware of the day, i don't know how would a modern BIOS look like.
Probably like UEFI