Grub2-mkpasswd-pbkdf2 ? I just did a man -k grub2
FWIW, although that's secure, if a machine goes down in the middle of the night, I prefer it come up on it's own so I can sleep. I'll find out when I check the logs.
Answer:
Option (B) Linear movement will be the answer.
An unintended consequence occurring some time after an event or action, especially an unwelcome one.