Heads HOTP invalid code


#1

Hi,
I use PureBoot with my librem and I realized when I started my computer that the BIOS had potentially been modified (I didn’t make any modifications related to the BIOS or TPM.).
What measures should be put in place after being the victim of this attack? How can I trust the GUI to allow me to flash the BIOS if it can, following the attack, fool me?
Thank you.


#2

[quote=“snvux, post:1, topic:7715, full:true”]Hi,
I use PureBoot with my librem and I realized when I started my computer that the BIOS had potentially been modified (I didn’t make any modifications related to the BIOS or TPM.).[/quote]

ok, what exactly was the error? what did it tell you was modified?

measures to do what exactly?

I’d argue it can’t, and the fact that it alerted you to tampering is proof of its trustworthiness. But how to proceed depends on what was modified. There’s not necessarily a need to flash the firmware.