The “nudge” theory developed by Nobel Prize winners Richard Thaler and Cass Sustein has caught the attention of many researchers across different knowledge areas. On one hand, their application to privacy decision-making has motivated the design of many preventative technologies for supporting information disclosure in online social networks. However, many concerns have arisen on how this type of persuasive mechanisms may threaten people’s autonomy. This talk addresses these issues and elaborates on design principles for ethical and personalized nudging solutions.