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Eleventh International Symposium on Human Aspects of Information Security & Assurance (HAISA 2017)
Title: Privacy Enhancing Tools: A Literature Review on End-User Role and Evaluation
Author(s): Ali Padyab, Anna Ståhlbröst
Keywords: Privacy Enhancing Tool, Privacy, Evaluation, End User
Abstract: Trends show that privacy concerns are rising, but end users are not armed with enough mechanisms to protect themselves. Privacy enhancing technologies (PETs) or more specifically, tools (PET-tools) are one of the mechanisms that could help users in this sense. These tools, however, reportedly have low adoption rates, and users tend to be reluctant to integrate them into their daily use of the Internet. Detailed scrutiny of current research on PET-tools, however, can guide future research to help overcome low adoption of these tools. We conducted a literature review on PET-tools to enumerate the types of tools available and how they are being evaluated, in order to shed more light on the missing elements in their evaluations. We reviewed and coded 72 articles in the PET-tool literature. Our results highlight two important issues: 1. Evaluation of most tools is performed using only artificial, summative and ex-post strategies; 2. While usability evaluation is quite common, evaluation of enhanced privacy is lacking. This research hopes to contribute to better PET-tool development, and encourage the inclusion of users in the evaluation and design process.
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