>Flashing inside BIOS setup application can be prevented by password. That is disabled by default. Most likely the BIOS checks this signature before booting or

>Flashing inside BIOS setup application can be prevented by password. That is disabled by default. Most likely the BIOS checks this signature before booting or flashing itself, no difference if you are root or not. It IS useful for a bios rootkit. The private key of Microsoft would be useful for a regultar boot-sector rootkit.