minicar: We had a consultant do some computer work for us and he setup a way that he could connect to our Mac mini server with a VNC connection if we needed help. We do not EVER want him to be able to connect. Never ever ever. Never! So how can we block him or prevent him from doing this? ThanksHow do I block or prevent a VNC connection to our Mac Mini Server?Go into your Mac Mini system preferences. Go to security and enable the firewall. Go to sharing and turn off all sharing like remote management. Finally, put a new password on your Mac Mini in your accounts section. You should be fine.