The firmware interface, TPM, and Secure Boot
A firmware interface is typically low-level software that acts as the medium between the OS and hardware to provide a basic UI for configuring device features and providing instructions for the boot procedure. BIOS and UEFI are the standard firmware interfaces used in these operations. Just as with the OS, firmware is also at risk to vulnerabilities and will need to be updated to remain secure. Next, we will review the different interfaces and some of their security features.
Protecting the BIOS
The BIOS is loaded directly onto a PC motherboard. Its purpose is to initialize the physical hardware, go through a series of processes, and eventually boot into Windows. Just as with the OS or PC software, the BIOS in your systems can become outdated and vulnerable to unauthorized modification. Furthermore, the BIOS initializes privileged hardware processes with greater rights than the OS itself. As a result, malware developers not only target...