Methods, systems, and apparatus are described providing social networking engines. Specifically, the present specification relates to a method for implementing software containers implementing social network engines that may be configured to act in a zero-knowledge environment. In such implementations, all information pertaining to the social network engine associated with a user that is stored in the container is solely that of a user unless explicitly shared by the user. In some implementations, the containers may be configured to participate in a publish-and-subscribe network in order to share information. In addition, the containers may be provisioned with controls so that global operators may comply with local privacy rules.