Abstract: In an embodiment, an application server is configured to manage privacy settings of a subscriber for one or more social networking services. The application server determines a set of privacy settings (e.g., a manually configured or default set of privacy settings) of the subscriber for the one or more social networking services, and then receives, from the subscriber, permission to dynamically modify the set of privacy settings. The application server monitors, responsive to the received permission, passive behavior of the subscriber that is separate from interactions between the subscriber and the one or more social networking services (e.g., calls, text messages, instant messages made to/from the subscriber, a location of the subscriber, etc.). The application server triggers a modification to the set of privacy settings based on the monitored passive behavior of the subscriber.