Single user mode

[mahdieh salamat]

Hi everybody. I have a question about single user mode in FreeBSD. Security
is so important for me. I want to know that if someone don't know my root's
password can access to it? In other words in our FreeBSD we don't have
FreeBSD boot loader menu, we delete it for our users becouse of security. I
want to know is there any other way except boot loader menu for our user to
access to our root's password?
Thanks