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Not sure if this is the correct forum but a 0 day exploit of UEFI...

My aimful life: Exploring and exploiting Lenovo firmware secrets
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Test Your Knowledge in Computers #479
Difficulty: Medium
A address usually refers to a single byte of memory (called bitwise-addressing).
True or False?
FIRMWAREPASSWD(8)					    BSD System Manager's Manual 					 FIRMWAREPASSWD(8)

firmwarepasswd -- tool for setting and removing firmware passwords on a system SYNOPSIS
firmwarepasswd [-setpasswd] [-setmode mode] [-mode] [-check] [-delete] [-verify] [-unlockseed] [-h] DESCRIPTION
The firmwarepasswd command is used to add or remove firmware passwords from a system as well as check status and other options. The firmwarepasswd command requires root privileges to run. A list of flags and their descriptions: -setpasswd Prompts to add a new firmware password or change and existing password if one exists. -setmode mode Set the mode to "command" or "full". "Command" will prompt for the firmware password if the user attempts to boot from a different volume. "Full" will prompt on every startup (not recommended). -mode Displays the current mode if one is set. -check Displays whether or not a firmware password is set. -delete Prompts for password and clears both password and the mode if correct. -verify Prompts for password and displays success if correct. -unlockseed Generates a firmware password recovery key. Note: Machine must be stable for this command to generate a valid seed. No pending changes that need a restart. NOTE: Seed is only valid until the next time a firmware password command runs. -h Displays a list of all the commands available in the firmwarepasswd tool, with explanatory information. FILES
/usr/sbin/firmwarepasswd OS X
April 9, 2014 OS X