Does the Raspberry Pi have proprietary closed source firmware for the BIOS?Firmware is the software programmed onto your laptop’s hardware at a deep, foundational level. In basic terms, firmware provides instructions for how parts of your laptop should communicate with each other. Firmware is another possible attack point, as highly sophisticated hackers (likely state-level) may be able to remotely access it and gain privileged control over your machine. … replacing closed source firmware (whereby the code is privately owned and not publicly available or auditable) with open source firmware (called ‘coreboot’, which is free to all and has publicly available and auditable code).
Information Security for Journalists – November 2014: Version 1.1 – page 15
If it does is it possible to replace this with something like Coreboot.