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Joanna Bresee


Publications by Joanna Bresee (bibliography)

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Mazurek, Michelle L., Arsenault, J. P., Bresee, Joanna, Gupta, Nitin, Ion, Iulia, Johns, Christina, Lee, Daniel, Liang, Yuan, Olsen, Jenny, Salmon, Brandon, Shay, Richard, Vaniea, Kami, Bauer, Lujo, Cranor, Lorrie Faith, Ganger, Gregory R. and Reiter, Michael K. (2010): Access control for home data sharing: evaluating social acceptability. In: Proceedings of ACM CHI 2010 Conference on Human Factors in Computing Systems 2010. pp. 645-654. http://doi.acm.org/10.1145/1753326.1753421

As digital content becomes more prevalent in the home, non-technical users are increasingly interested in sharing that content with others and accessing it from multiple devices. Not much is known about how these users think about controlling access to this data. To better understand this, we conducted semi-structured, in-situ interviews with 33 users in 15 households. We found that users create ad-hoc access-control mechanisms that do not always work; that their ideal policies are complex and multi-dimensional; that a priori policy specification is often insufficient; and that people's mental models of access control and security are often misaligned with current systems. We detail these findings and present a set of associated guidelines for designing usable access-control systems for the home environment.

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Kelley, Patrick Gage, Cesca, Lucian, Bresee, Joanna and Cranor, Lorrie Faith (2010): Standardizing privacy notices: an online study of the nutrition label approach. In: Proceedings of ACM CHI 2010 Conference on Human Factors in Computing Systems 2010. pp. 1573-1582. http://doi.acm.org/10.1145/1753326.1753561

Earlier work has shown that consumers cannot effectively find information in privacy policies and that they do not enjoy using them. In our previous research we developed a standardized table format for privacy policies. We compared this standardized format, and two short variants (one tabular, one text) with the current status quo: full text natural-language policies and layered policies. We conducted an online user study of 764 participants to test if these three more-intentionally designed, standardized privacy policy formats, assisted by consumer education, can benefit consumers. Our results show that standardized privacy policy presentations can have significant positive effects on accuracy and speed of information finding and on reader enjoyment of privacy policies.

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Kelley, Patrick Gage, Bresee, Joanna, Cranor, Lorrie Faith and Reeder, Robert W. (2009): A "nutrition label" for privacy. In: Proceedings of the 2009 Symposium on Usable Privacy and Security 2009. p. 4. http://doi.acm.org/10.1145/1572532.1572538

We used an iterative design process to develop a privacy label that presents to consumers the ways organizations collect, use, and share personal information. Many surveys have shown that consumers are concerned about online privacy, yet current mechanisms to present website privacy policies have not been successful. This research addresses the present gap in the communication and understanding of privacy policies, by creating an information design that improves the visual presentation and comprehensibility of privacy policies. Drawing from nutrition, warning, and energy labeling, as well as from the effort towards creating a standardized banking privacy notification, we present our process for constructing and refining a label tuned to privacy. This paper describes our design methodology; findings from two focus groups; and accuracy, timing, and likeability results from a laboratory study with 24 participants. Our study results demonstrate that compared to existing natural language privacy policies, the proposed privacy label allows participants to find information more quickly and accurately, and provides a more enjoyable information seeking experience.

© All rights reserved Kelley et al. and/or ACM Press

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