Lujo Bauer

schoolCarnegie Mellon Universitybar_chart#1152 Global Rank

Total Papers

HCI Rank

#1152

Research Areas

Years Active

Recent Publications

Passing Down Passwords: How Older Adults Approach Postmortem Account Access and Digital Estate Planning

Traditional estate planning practices enable people to provide their heirs access to the assets left behind but are often insufficient for the transfer and management of online accounts. To understand how estate planning practices could be improved, we conducted 21 semi-structured interviews with older adults in the U…

CHI '254th AuthorHuman-LLM Collaboration +2

LLM Whisperer: An Inconspicuous Attack to Bias LLM Responses

Writing effective prompts for large language models (LLM) can be unintuitive and burdensome. In response, services that optimize or suggest prompts have emerged. While such services can reduce user effort, they also introduce a risk: the prompt provider can subtly manipulate prompts to produce heavily biased LLM r…

CHI '255th+ AuthorAI Ethics, Fairness & Accountability +2

Measuring Risks to Users' Health Privacy Posed by Third-Party Web Tracking and Targeted Advertising

Online advertising platforms may be able to infer privacy-sensitive information about people, such as their health conditions. This could lead to harms like exposure to predatory targeted advertising or unwanted disclosure of health conditions to employers or insurers. In this work, we experimentally evaluate whether…

CHI '244th AuthorHonorable MentionCybersecurity Training & Awareness +1

Interdisciplinary Approaches to Cybervulnerability Impact Assessment for Energy Critical Infrastructure

As energy infrastructure becomes more interconnected, understanding cybersecurity risks to production systems requires integrating operational and computer security knowledge. We interviewed 18 experts working in the field of energy critical infrastructure to compare what information they find necessary to assess the…

CSCW '222nd AuthorPrivacy at Various Life Stages; Privacy at Various Life Stages

"Adulthood is trying each of the same six passwords that you use for everything": The Scarcity and Ambiguity of Security Advice on Social Media

Awareness of security and privacy best practices is important for computer users to keep their systems and data secure. Prior work has shown, in experimental settings, that social media are effective platforms for encouraging security-enhancing behavior and sharing security experiences. To understand how effective sec…

CHI '195th+ AuthorPrivacy by Design & User Control +1

A Field Study of Computer-Security Perceptions Using Anti-Virus Customer-Support Chats

Understanding users' perceptions of suspected computer-security problems can help us tailor technology to better protect users. To this end, we conducted a field study of users' perceptions using 189,272 problem descriptions sent to the customer-support desk of a large anti-virus vendor from 2015 to 2018. Using qualit…

CSCW '183rd AuthorPrivacy in Homes and Groups

The Influence of Friends and Experts on Privacy Decision Making in IoT Scenarios

As increasingly many Internet-of-Things (IoT) devices collect personal data, users face more privacy decisions. Personal privacy assistants can provide social cues and help users make informed decisions by presenting information about how others have decided in similar cases. To better understand which social cues are…

CHI '185th+ AuthorPasswords & Authentication +2

"It's not actually that horrible": Exploring Adoption of Two-Factor Authentication at a University

Despite the additional protection it affords, two-factor authentication (2FA) adoption reportedly remains low. To better understand 2FA adoption and its barriers, we observed the deployment of a 2FA system at Carnegie Mellon University (CMU). We explore user behaviors and opinions around adoption, surrounding a mandat…

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