When the BIOS/UEFI detects an authentication failure, it generates a unique, pseudo-random string of characters based on the motherboard's hardware ID, current time, and firmware version.
What specific are you working with?
: When the lockout occurs, the firmware reads unique hardware identifiers, such as the motherboard UUID, current system time metrics, and the device serial number. Toshiba.challenge.response.code.generator High Quality