The previous post was a tutorial on how to enable or password protect the GRUB. But I think it is not complete. The passwords will be  stored as plain
text if you perform the changes given in the previous post. In order to encrypt those passwords you must generate an encrypted version for each. For
this we use grub-mkpasswd-pbkdf2

1. Open the terminal
2. Run the following command
 grub-mkpasswd-pbkdf2
3. Enter the desired password and reenter it when prompted.
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