The 30-year-long Reign of BIOS is Over

With every advancement in sophistication and especially with a pre-Boot, network accessible environment like EUFI's, we add an attack surface. UEFI has to be trusted and secure. I found a Black Hat article by Heasman (Google "Hacking the Extensible Firmware Interface") that does a nice job of explaining UEFI and what the "worry points" will be.