I'm using OS 10.11.1. I turned on Screen Sharing:
and disabled "VNC viewers may control screen with password":
But as you can see, it still says "Other users can access your computer's screen at vnc://...". Does that mean that, when "VNC viewers may control screen with password" is unchecked, VNC viewers can control my screen WITHOUT a password? Or does it mean that VNC is disabled?
(Ideally I'd like to allow VNC over SSH, rather than with a password.)