In conclusion, our research expands on existing research in SNS privacy by examining confidant disclosures through engaging with friends through tagging and apps on Facebook. Our results can both help to explain why users’ privacy concerns and behaviors do not appear to line up, as well as point to design issues that affect these concerns and behaviors. While both tagging and app engagement involve friends’ disclosing a user’s personal information, the difference in transparency and understanding of those features resulted in different privacy concerns being relevant to their usage.