A5005754668- Privacy, Security, and Data Protection
- COVID-19 Digital Contact Tracing
- Mobile Health and mHealth Applications
- Social Media and Politics
- Sexuality, Behavior, and Technology
- Impact of Technology on Adolescents
- Media Influence and Health
- Misinformation and Its Impacts
- Digital Mental Health Interventions
- Spam and Phishing Detection
- Opportunistic and Delay-Tolerant Networks
- Hate Speech and Cyberbullying Detection
- Ethics and Social Impacts of AI
- Information and Cyber Security
- Vaccine Coverage and Hesitancy
- Internet Traffic Analysis and Secure E-voting
- Digital Media Forensic Detection
- Mobile Crowdsensing and Crowdsourcing
- Human Mobility and Location-Based Analysis
Ruhr University Bochum
2021-2024
The COVID-19 pandemic has fueled the development of smartphone applications to assist disease management. Many "corona apps" require widespread adoption be effective, which sparked public debates about privacy, security, and societal implications government-backed health applications. We conducted a representative online study in Germany (n = 1003), US China 1019) investigate user acceptance corona apps, using vignette design based on contextual integrity framework. explored apps for contact...
This paper investigates the digital security experiences of four at-risk user groups in Germany, including older adults (70+), teenagers (14-17), people with migration backgrounds, and low formal education.Using computer-assisted telephone interviews, we sampled 250 participants per group, representative region, gender, partly age distributions.We examine their device usage, concerns, prior negative incidents, perceptions potential attackers, information sources.Our study provides first...
Misconceptions about digital security and privacy topics in the general public frequently lead to insecure behavior. However, little is known prevalence extent of such misconceptions a global context. In this work, we present results first large-scale survey population on misconceptions: We conducted an online with n = 12, 351 participants 12 countries four continents. By investigating influencing factors around eight common (including E2EE, Wi-Fi, VPN, malware), find country residence be...
Abstract Digital tools play an important role in fighting the current global COVID-19 pandemic. We conducted a representative online study Germany on sample of 599 participants to evaluate user perception vaccination certificates. investigated five different variants certificates based deployed and planned designs between-group design, including paper-based app-based variants. Our main results show that willingness use adopt is generally high. Overall, were favored over solutions. The...
As a result of the ongoing digitalization our everyday lives, amount data produced by everyone is steadily increasing. This happens through personal decisions and items, such as use social media or smartphones, but also more acquisition in public spaces, e.g., Closed Circuit Television. Are people aware they are sharing? What kind do want to share with whom? if have Wi-Fi, GPS, Bluetooth activated potential sharing functionalities on their phone? To answer these questions, we conducted...
The COVID-19 pandemic has prompted countries around the world to introduce smartphone apps support disease control efforts. Their purposes range from digital contact tracing quarantine enforcement vaccination passports, and their effectiveness often depends on widespread adoption. While previous work identified factors that promote or hinder adoption, it typically examined data collected at a single point in time focused exclusively apps. In this work, we conduct first representative study...
AI-generated media has become a threat to our digital society as we know it. These forgeries can be created automatically and on large scale based publicly available technology. Recognizing this challenge, academics practitioners have proposed multitude of automatic detection strategies detect such artificial media. However, in contrast these technical advances, the human perception generated not been thoroughly studied yet. In paper, aim at closing research gap. We perform first...
We aim to develop a questionnaire that measures privacy and security knowledge, attitude, behavior on broad level with wide range of topics like authentication, smart home, web tracking, operating systems, mobile devices, instant messaging, social media. To find relevant topics, we incorporated similar questionnaires expert advice given by researchers public institutions. In addition, organized workshop Ph.D. students also conducted interviews. generated 276 items based the derived which are...
The COVID-19 pandemic has prompted countries around the world to introduce smartphone apps support disease control efforts. Their purposes range from digital contact tracing quarantine enforcement vaccination passports, and their effectiveness often depends on widespread adoption. While previous work identified factors that promote or hinder adoption, it typically examined data collected at a single point in time focused exclusively apps. In this work, we conduct first representative study...
Misconceptions about digital security and privacy topics in the general public frequently lead to insecure behavior. However, little is known prevalence extent of such misconceptions a global context. In this work, we present results first large-scale survey population on misconceptions: We conducted an online with n = 12, 351 participants 12 countries four continents. By investigating influencing factors around eight common (including E2EE, Wi-Fi, VPN, malware), find country residence be...
This paper investigates the digital security experiences of four at-risk user groups in Germany, including older adults (70+), teenagers (14-17), people with migration backgrounds, and low formal education. Using computer-assisted telephone interviews, we sampled 250 participants per group, representative region, gender, partly age distributions. We examine their device usage, concerns, prior negative incidents, perceptions potential attackers, information sources. Our study provides first...
Digital tools play an important role in fighting the current global COVID-19 pandemic. We conducted a representative online study Germany on sample of 599 participants to evaluate user perception vaccination certificates. investigated five different variants certificates, based deployed and planned designs between-group design, including paper-based app-based variants. Our main results show that willingness use adopt certificates is generally high. Overall, were favored over solutions. The...