As the N4 administrator, you can enforce password requirements.
To update password requirements:
In N4, open the Settings view (on page 1) (Administration Settings
Settings view).
Use the search box to search to find the settings. For example, type frmsecurity* to find all the settings that start with "frmsecurity".
Select the setting you want to change and double-click.
Click Override and update the value.
Click Save.