SecureBoot was as much an attempt by Microsoft to put in place a method to lock out other OSes as it was for local physical security. Most consumer desktop and

SecureBoot was as much an attempt by Microsoft to put in place a method to lock out other OSes as it was for local physical security. Most consumer desktop and laptop computer users don't password protect their BIOS/EFI, so an attacker with physical access can simply turn off SecureBoot themselves and then boot whatever toolkit they want to take over the system.