Drawing on content analysis of user responses to the revisions in the Facebook Privacy Policy, this study develops a process model to explain emergence and outcome processes of users’ information privacy concerns in an online social networking context. The first phase of the model proposes three broad categories of informational practices – collection and storage; processing and use; and dissemination of personal data—associated with users’ information privacy concerns. This phase also identifies the conditions under which proposed practices are attributed as privacy issues. The second phase of the model describes outcomes of perceived privacy issues by proposing users’ affective and behavioral responses. The findings provide evidence for, (1) the important role of trigger conditions in emergence of users’ information privacy concerns, (2) the gap between privacy issues that are perceived by users and identified by domain experts, (3) the uniqueness of online social networking context in providing distinct privacy challenges.