Threats to privacy are not only due to traditional computer security issues; human factors issues such as unintentional disclosure of information also have an impact on privacy preservation. In this talk I will discuss two examinations of psychological aspects of privacy and how they relate to technology. First, I will present results from an investigation of everyday privacy behaviors and discuss how these naturally occurring behaviors can guide the design of privacy protective technology. Then, I will introduce the concept of misclosure, which is the unintentional disclosure of information, and provide multiple example misclosures. I will conclude by demonstrating that misclosures a) occur frequently b) occur across systems and c) may be preventable by considering human factors during design.