Microsoft Option ROM UEFI CA 2023 is variable per make/model/oem. Field reports showed devices that reached Event 1808 then received a fresh 1801 once Windows Update began serving the Option ROM cert.

All-in-one ICS/SCADA hacking, red teaming, malware analysis, detection, and lab architecture cheat sheet - ridpath/SCADA-OT-CheatSheet-Advanced-ICS-Hacking-Playbook ...