The objective of this paper is to systematically develop privacy heuristics for Online Social Network Services (SNS). In order to achieve this, we provide an analytical framework in which we characterize privacy breaches that have occurred in SNS and distinguish different stakeholders’ perspectives. Although SNS have been criticized for numerous grave privacy breaches, they have also proven to be an interesting space in which privacy design is implemented and critically taken up by users. Community involvement in the discovery of privacy breaches as well as in articulating privacy demands points to possibilities in user-driven privacy design. In our analysis we take a multilateral security analysis approach and identify conflicts in privacy interests and list points of intervention and negotiation. In our future research, we plan to validate the usefulness as well as the usability of these heuristics and to develop a framework for privacy design in SNS.