What is the System Password and when will it be used?
On my devices its empty. Only users have passwords defined.
On this doc page there is no info about it: https://wiki.mikrotik.com/wiki/Manual:System
The above link is for ROS v7. In v6 they seem to be somwehere else.
B/c v6 has in WebFig under system a password as well.
The documentations are really a mess. One needs a handbook that explicitly says that it covers ROS version x.