Divyanshu Bhardwaj

schoolHelmholtz Center for Information Securitybar_chart#2154 Global Rank

Total Papers

HCI Rank

#2154

Research Areas

Years Active

Recent Publications

See Me If You Can: A Multi-Layer Protocol for Bystander Privacy with Consent-Based Restoration

The growing popularity of wearable camera glasses raises pressing concerns about bystanders being recorded without their consent. Most existing privacy-enhancing technologies (PETs) rely on opt-out models that place the burden of privacy protection on bystanders. We conducted a qualitative study on wearers’ and bystan…

CHI '262nd AuthorContext-Aware Computing +2

Privacy & Safety Challenges of On-Body Interaction Techniques

On-body computing systems offer new forms of interaction, but while they are increasingly integrated into everyday contexts, their unique privacy and safety challenges remain understudied. This paper examines these challenges through a two-round interview study with $N = 15$ experts in human-computer interaction, an…

CHI '262nd AuthorPrivacy Perception & Decision-Making +2

From Discovery to Decisions: Archetypal Journeys of Mobile App Users and Their Implications on Privacy

Mobile permission decisions are often studied at the moment a permission request appears. However, our study shows that users’ choices are shaped much earlier, across a multi-stage journey that begins with app-need recognition and unfolds through app discovery, exploration, selection, installation, and first use.…

CHI '241st AuthorPrivacy by Design & User Control +2

Mental Models, Expectations and Implications of Client-Side Scanning: An Interview Study with Experts

Client-Side Scanning (CSS) is discussed as a potential solution to contain the dissemination of child sexual abuse material (CSAM). A significant challenge associated with this debate is that stakeholders have different interpretations of the capabilities and frontiers of the concept and its varying implementations. I…

CHI '241st AuthorHonorable MentionPrivacy by Design & User Control +2

In Focus, Out of Privacy: The Wearer's Perspective on the Privacy Dilemma of Camera Glasses

The rising popularity of camera glasses challenges societal norms of recording bystanders and thus requires efforts to mediate privacy preferences. We present the first study on the wearers' perspectives and explore privacy challenges associated with wearing camera glasses when bystanders are present. We conducted a m…

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