So this is pretty interesting:
LightEater malware attack places millions of unpatched BIOSes at risk
LightEater malware attack places millions of unpatched BIOSes at risk
The malware can be used to infect huge numbers of systems by creating SMM (System Management Mode) implants which can be tailored to individual BIOSes with simple pattern matching. A BIOS from Gigabyte was found to be particularly insecure.