Systems, methods and non-transitory computer readable media for determining permissions in privacy firewalls are provided. At least part of a content of a data collection may be analyzed to determine a subject matter. A permission corresponding to the data collection and at least one user may be determined based on the subject matter. A request of the at least one user to access at least part of the data collection may be received. In response to a first determined permission, the requested access to the at least part of the data collection may be provided, and in response to a second determined permission, the request may be denied.