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  1. ; ; ( , USENIX Symposium on Usable Privacy and Security)
    The rapid growth of facial recognition technology across ever more diverse contexts calls for a better understanding of how people feel about these deployments — whether they see value in them or are concerned about their privacy, and to what extent they have generally grown accustomed to them. We present a qualitative analysis of data gathered as part of a 10-day experience sampling study with 123 participants who were presented with realistic deployment scenarios of facial recognition as they went about their daily lives. Responses capturing their attitudes towards these deployments were collected both in situ and through daily eveningmore »surveys, in which participants were asked to reflect on their experiences and reactions. Ten follow-up interviews were conducted to further triangulate the data from the study. Our results highlight both the perceived benefits and concerns people express when faced with different facial recognition deployment scenarios. Participants reported concerns about the accuracy of the technology, including possible bias in its analysis, privacy concerns about the type of information being collected or inferred, and more generally, the dragnet effect resulting from the widespread deployment. Based on our findings, we discuss strategies and guidelines for informing the deployment of facial recognition, particularly focusing on ensuring that people are given adequate levels of transparency and control.« less
    Accepted Manuscript Full Text Available
  2. ; ; ; ; ; ( , PoPETS)
    Cameras are everywhere, and are increasingly coupled with video analytics software that can identify our face, track our mood, recognize what we are doing, and more. We present the results of a 10-day in-situ study designed to understand how people feel about these capabilities, looking both at the extent to which they expect to encounter them as part of their everyday activities and at how comfortable they are with the presence of such technologies across a range of realistic scenarios. Results indicate that while some widespread deployments are expected by many (e.g., surveillance in public spaces), others are not, withmore »some making people feel particularly uncomfortable. Our results further show that individuals’ privacy preferences and expectations are complicated and vary with a number of factors such as the purpose for which footage is captured and analyzed, the particular venue where it is captured, and whom it is shared with. Finally, we discuss the implications of people’s rich and diverse preferences on opt-in or opt-out rights for the collection and use (including sharing) of data associated with these video analytics scenarios as mandated by regulations. Because of the user burden associated with the large number of privacy decisions people could be faced with, we discuss how new types of privacy assistants could possibly be configured to help people manage these decisions.« less
    Accepted Manuscript Full Text Available
  3. ; ; ; ; ; ; ; ( , ACM Conference on Human Factors in Computing Systems)
    Increasingly, icons are being proposed to concisely convey privacyrelated information and choices to users. However, complex privacy concepts can be difcult to communicate. We investigate which icons efectively signal the presence of privacy choices. In a series of user studies, we designed and evaluated icons and accompanying textual descriptions (link texts) conveying choice, opting-out, and sale of personal information — the latter an opt-out mandated by the California Consumer Privacy Act (CCPA). We identifed icon-link text pairings that conveyed the presence of privacy choices without creating misconceptions, with a blue stylized toggle icon paired with “Privacy Options” performing best. Themore »two CCPA-mandated link texts (“Do Not Sell My Personal Information” and “Do Not Sell My Info”) accurately communicated the presence of do-notsell opt-outs with most icons. Our results provide insights for the design of privacy choice indicators and highlight the necessity of incorporating user testing into policy making.« less
    Accepted Manuscript Full Text Available
  4. ; ; ( , ACM Conference on Human Factors in Computing Systems)
    “Notice and choice” is the predominant approach for data privacy protection today. There is considerable user-centered research on providing efective privacy notices but not enough guidance on designing privacy choices. Recent data privacy regulations worldwide established new requirements for privacy choices, but system practitioners struggle to implement legally compliant privacy choices that also provide users meaningful privacy control. We construct a design space for privacy choices based on a user-centered analysis of how people exercise privacy choices in real-world systems. This work contributes a conceptual framework that considers privacy choice as a user-centered process as well as a taxonomy formore »practitioners to design meaningful privacy choices in their systems. We also present a use case of how we leverage the design space to fnalize the design decisions for a real-world privacy choice platform, the Internet of Things (IoT) Assistant, to provide meaningful privacy control in the IoT.« less
    Accepted Manuscript Full Text Available
  5. ; ; ( , PoPETS)
    Browser users encounter a broad array of potentially intrusive practices: from behavioral profiling, to crypto-mining, fingerprinting, and more. We study people’s perception, awareness, understanding, and preferences to opt out of those practices. We conducted a mixed-methods study that included qualitative (n=186) and quantitative (n=888) surveys covering 8 neutrally presented practices, equally highlighting both their benefits and risks. Consistent with prior research focusing on specific practices and mitigation techniques, we observe that most people are unaware of how to effectively identify or control the practices we surveyed. However, our user-centered approach reveals diverse views about the perceived risks and benefits, andmore »that the majority of our participants wished to both restrict and be explicitly notified about the surveyed practices. Though prior research shows that meaningful controls are rarely available, we found that many participants mistakenly assume opt-out settings are common but just too difficult to find. However, even if they were hypothetically available on every website, our findings suggest that settings which allow practices by default are more burdensome to users than alternatives which are contextualized to website categories instead. Our results argue for settings which can distinguish among website categories where certain practices are seen as permissible, proactively notify users about their presence, and otherwise deny intrusive practices by default. Standardizing these settings in the browser rather than being left to individual websites would have the advantage of providing a uniform interface to support notification, control, and could help mitigate dark patterns. We also discuss the regulatory implications of the findings.« less
    Accepted Manuscript Full Text Available
  6. ( , Symposium on Usable Privacy and Security)
    Universities have been forced to rely on remote educational technology to facilitate the rapid shift to online learning. In doing so, they acquire new risks of security vulnerabilities and privacy violations. To help universities navigate this landscape, we develop a model that describes the actors, incentives, and risks, informed by surveying 105 educators and 10 administrators. Next, we develop a methodology for administrators to assess security and privacy risks of these products. We then conduct a privacy and security analysis of 23 popular platforms using a combination of sociological analyses of privacy policies and 129 state laws, alongside a technicalmore »assessment of platform software. Based on our findings, we develop recommendations for universities to mitigate the risks to their stakeholders.« less
    Accepted Manuscript Full Text Available