Treat motherboard firmware updates with the same urgency as OS security patches.
Hardware-forced verification of the initial BIOS code before the CPU executes it.
Many enthusiast motherboards feature a physical backup BIOS chip that can be restored if the primary chip is corrupted. 3. Defensive Best Practices
System Management Mode (SMM) is a highly privileged CPU mode. Vulnerabilities in SMM handlers allow attackers to execute arbitrary code with ring -2 privileges.
Attackers use clips to connect directly to the SPI flash chip on the motherboard to read or overwrite the BIOS binary.