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Excerpt:

"One of my favorite microchips of all time is FT2232H from FTDI — its dual channel USB to serial converter that supports various protocols and configurations. It can work with UART, I2C, SPI and JTAG protocols, it also supports bit-bang mode and multi-protocol synchronous high speed engine (MPSSE) — its pretty much a real digital electronics swiss knife. There’s also a single channel version of this chip called FT232H, but as for me it’s more convenient to have dual channel one: for example, you can flash firmware to your target device over SPI and debug it via JTAG in the same time which is very convenient. Also, there are some motherboards which use more than one SPI flash chip to store platform firmware (my Intel DQ77KB motherboard uses two). To work with this neat chip you can buy official FT2232H Mini Module from FTDI or make your own board."

Opinion: This article is chock full o' SMM/UEFI/Firmware technical information. Definitely worth a read.

Also, another excerpt:

"I sent my reports to Intel Platform Security and Incident Response Team at 15.07.2016 and after several working days and short e-mail conversation both Intel and AMI confirmed all of the security issues. Intel decided to release a single advisory INTEL-SA-00057 to cover all four vulnerabilities. Fixed firmware for my NUC of version SYSKLi35.86A.0051 was released at 10.08.2016 — not bad, especially as for the job that requires coordinated work of two different companies."