  People who are marginalized experience disproportionate harms when their
privacy is violated. Meeting their needs is vital for developing equitable and
privacy-protective technologies. In response, research at the intersection of
privacy and marginalization has acquired newfound urgency in the HCI and social
computing community. In this literature review, we set out to understand how
researchers have investigated this area of study. What topics have been
examined, and how? What are the key findings and recommendations? And,
crucially, where do we go from here? Based on a review of papers on privacy and
marginalization published between 2010-2020 across HCI, Communication, and
Privacy-focused venues, we make three main contributions: (1) we identify key
themes in existing work and introduce the Privacy Responses and Costs framework
to describe the tensions around protecting privacy in marginalized contexts,
(2) we identify understudied research topics (e.g., race) and other avenues for
future work, and (3) we characterize trends in research practices, including
the under-reporting of important methodological choices, and provide
suggestions for establishing shared best practices for this growing research
area.
