Steffen Becker

schoolRuhr University Bochumbar_chart#1741 Global Rank

Total Papers

HCI Rank

#1741

Research Areas

Years Active

Recent Publications

Campus AI vs. Commercial AI: Comparing How Students and Employees Perceive their University’s LLM Chatbot vs. ChatGPT

As the use of LLM chatbots by students and researchers becomes more prevalent, universities are pressed to develop AI strategies. One strategy that many universities pursue is to customize pre-trained LLM-as-a-service (LLMaaS) chatbots. While most studies on LLMaaS chatbots prioritize technical adaptations, these s…

CHI '251st AuthorExplainable AI (XAI) +1

ReverSim: An Open-Source Environment for the Controlled Study of Human Aspects in Hardware Reverse Engineering

Hardware Reverse Engineering (HRE) is a technique for analyzing integrated circuits. Experts employ HRE for security-critical tasks, like detecting Trojans or intellectual property violations, relying not only on their experience and customized tools but also on their cognitive abilities. In this work, we introduce Re…

CHI '244th AuthorEye Tracking & Gaze Interaction +1

I see an IC: A Mixed-Methods Approach to Study Human Problem-Solving Processes in Hardware Reverse Engineering

Trust in digital systems depends on secure hardware, often assured through Hardware Reverse Engineering (HRE). This work develops methods for investigating human problem-solving processes in HRE, an underexplored yet critical aspect. Since reverse engineers rely heavily on visual information, eye tracking holds promis…

CSCW '235th+ AuthorCOVID-19 + CSCW

52 Weeks Later: Attitudes Towards COVID-19 Apps for Different Purposes Over Time

The COVID-19 pandemic has prompted countries around the world to introduce smartphone apps to support disease control efforts. Their purposes range from digital contact tracing to quarantine enforcement to vaccination passports, and their effectiveness often depends on widespread adoption. While previous work has iden…

CHI '232nd AuthorPrivacy by Design & User Control +2

A World Full of Privacy and Security (Mis)conceptions? Findings of a Representative Survey in 12 Countries

Misconceptions about digital security and privacy topics in the general public frequently lead to insecure behavior. However, little is known about the prevalence and extent of such misconceptions in a global context. In this work, we present the results of the first large-scale survey of a global population on miscon…

CHI '212nd AuthorPrivacy by Design & User Control +2

Apps Against the Spread: Privacy Implications and User Acceptance of COVID-19-Related Smartphone Apps on Three Continents

The COVID-19 pandemic has fueled the development of smartphone applications to assist disease management. Many "corona apps" require widespread adoption to be effective, which has sparked public debates about the privacy, security, and societal implications of government-backed health applications. We conducted a rep…

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