Mensch und Computer 2022
Mensch und Computer 2022 vom 4.-7. September 2022 in Darmstadt
https://muc2022.mensch-und-computer.de/
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Auflistung Mensch und Computer 2022 nach Autor:in "Alt, Florian"
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- KonferenzbeitragAlexa, It’s Me! An Online Survey on the User Experience of Smart Speaker Authentication(Mensch und Computer 2022 - Tagungsband, 2022) Renz, Andreas; Baldauf, Matthias; Maier, Edith; Alt, FlorianVerifying the identify of the speaker is a crucial requirement for security-critical voice-based services on smart speakers, such as transferring money or making online purchases. Whilst various studies have explored novel authentication mechanisms for voice based services, there is little research on the user experience of respective authentication methods. To address this gap, we conducted a comprehensive online survey (n=696). We compared five authentication methods (spoken PIN, biometrics, app with button/voice confirmation, card reader) regarding their perceived efficiency, security, ease of use, and error susceptibility. Additionally, we investigated users’ willingness to use security-critical services in banking and government. We found an overall preference to confirm actions triggered by voice by pressing a button on a mobile authentication app followed by PIN-based authentication. In contrast, biometric authentication by voice is considered unreliable, while applying a card reader is regarded secure, yet less convenient.
- KonferenzbeitragEnthusiasts, Pragmatists, and Skeptics: Investigating Users’ Attitudes Towards Emotion- and Personality-Aware Voice Assistants across Cultures(Mensch und Computer 2022 - Tagungsband, 2022) Ma, Yong; Abdelrahman, Yomna; Drewes, Heiko; Petz, Barbarella; Alt, Florian; Hussmann, Heinrich; Butz, AndreasVoice Assistants (VAs) are becoming a regular part of our daily life. They are embedded in our smartphones or smart home devices. Just as natural language processing has improved the conversation with VAs, ongoing work in speech emotion recognition also suggests that VAs will soon become emotion- and personality-aware. However, the social implications, ethical borders and the users’ general attitude towards such VAs remain underexplored. In this paper, we investigate users’ attitudes towards and preferences for emotionally aware VAs in three different cultures. We conducted an online questionnaire with N = 364 participants in Germany, China, and Egypt to identify differences and similarities in attitudes. Using a cluster analysis, we identified three different basic user types (Enthusiasts, Pragmatists, and Skeptics), which exist in all cultures. We contribute characteristic properties of these user types and highlight how future VAs should support customizable interactions to enhance user experience across cultures.
- WorkshopbeitragInclusive Security by Design(Mensch und Computer 2022 - Workshopband, 2022) Knierim, Pascal; Prange, Sarah; Feger, Sebastian; Schneegaß, Stefan; Sasse, Angela; Bayerl, Dominik; Hof, Hans-Joachim; Alt, FlorianWith the digital transformation touching all aspects of people’s lives, digital security practices and shortcomings increasingly affect the physical world, with substantial consequences for human quality of life. The way digital security is currently designed is a significant barrier for many users. It creates negative user experiences and makes many people dependent on others to participate in the digital world safely. Understanding, controlling, and acting on digital security aspects is key to a self-determined life. Collaborative research is required to address this important challenge that could bring the digital transformation to a halt. This workshop aims to bring together researchers from the human-computer-interaction and security communities to build an understanding of technical and social requirements for inclusive security.
- WorkshopbeitragRubik's Cube Auth - A Tangible Authentication Mechanism Using A Standard Rubik’s Cube(Mensch und Computer 2022 - Workshopband, 2022) Balogh, Szilvia; Daniel, Tobias; Delgado Rodriguez, Sarah; Prieto Romero, Ismael; Alt, FlorianCreating and remembering secure passwords is becoming more important and increasingly difficult. To cope with this development, novel mechanisms utilizing tangible interactions provide new and more engaging ways of user authentication. In this work we implement Rubik’s Cube Auth, a prototype that allows to use a standard 3x3x3 Rubik’s Cube as a working authentication mechanism. We found that the concept of Rubik’s Cube Auth was received positively and discuss possible steps for future research, such as conducting user studies to evaluate our prototype, adding a second authentication factor and possible improvements of our prototype.