Intel just released CSME firmware to patch CVE-2020-8705, my FPGA assisted Bootguard bypass when waking the system from S3 sleep. Full writeup: https://trmm.net/Sleep_attack/
Ran across some classic K&R C code from nearly thirty years ago while doing some digital archaeology. It still compiles, with many warnings, and runs fine on modern systems, despite lacking prototypes and modern C89 features like variadic functions.