Petronio’s (2002) communication privacy management (CPM) theory is built on Altman’s dialectical conception of privacy as a process of opening and closing a boundary to others. CPM theory argues that when people disclose private information, they depend on a rule-based boundary system as a decision base to manage the level of accessibility (Petronio, 1991). Disclosure is the process of revealing and protection reflects the process of concealing. The content of what is revealed or concealed is private information. Using a rule-based perspective overcomes limitations Altman identified in his privacy regulation theory (Altman et al., 1981). Notably, rules allow us to consider how decisions are made for revealing and concealing private information (Petronio, 2000, 2002).