Privacy and Visibility settings allow you to manage and control access to your site. These settings can be updated from the Dashboard > Settings > Reading section of each site dashboard under the section header Site Visibility.
It is important to note that these privacy settings control front-end (viewing) access to sites, and do not restrict administrative or editing access for those who have access to your site. There are several options for how the site privacy is configured, each of which is explained in detail below: