Jacob Kröger has been a doctoral researcher at the Weizenbaum Institute since January 2018. Previously, he studied engineering management at TU Berlin, Dublin City University and the University of Sydney, specialising in information and communication systems. His PhD project focuses on the privacy implications of mobile and IoT devices. Based on published experimental research, existing commercial products and filed patents, he investigates the wealth of sensitive information that can be inferred from the sensor data collected by consumer electronic devices and smart home appliances. Among other sensors, he has explored the privacy-invading potential of eye tracking data, smart meter readings, motion sensor data and voice recordings.
Contact
Email: [lastname]@tu-berlin.de
Twitter: @JL_Kroger
Publications
Pape, S. and Harborth, D. and Kröger, J.L. (2021). Privacy Concerns Go Hand in Hand with Lack of
Knowledge: The Case of the German Corona-Warn-App. 36th International Conference on ICT Systems Security and Privacy Protection. Springer
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Kröger, J.L. and Gellrich, L. and Pape, S. and Brause, S.R. and Ullrich, S. (2022). Personal information inference from voice recordings: User awareness and privacy concerns. Proceedings on Privacy Enhancing Technologies, 2022 (1). Sciendo, Warsaw, 6-27.
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Kröger, J.L. and Lindemann, J. and Herrmann, D. (2020). How do app vendors respond to subject access requests? A longitudinal privacy study on iOS and Android Apps. ARES ’20: Proceedings of the 15th International Conference on Availability, Reliability and Security. ACM, New York, NY, USA, 1-10.
(Best Paper Award)
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Lutz, O.HM. and Kröger, J.L. and Schneiderbauer, M. and Kopankiewicz, J.M. and Hauswirth, M. and Hermann, T. (2020). That password doesn’t sound right: interactive password strength sonification. In: AM ’20: Proceedings of the 15th International Conference on Audio Mostly. ACM, New York, NY, USA, 206–213.
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Kröger, J.L. and Lutz, O.HM. and Raschke, P. (2020). Privacy Implications of Voice and Speech Analysis – Information Disclosure by Inference. In: Friedewald M., Önen M., Lievens E., Krenn S., Fricker S. (eds) Privacy and Identity Management. Data for Better Living: AI and Privacy. Springer International Publishing, 242–258.
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Kröger, J.L. and Lutz, O.HM. and Müller, F. (2020). What Does Your Gaze Reveal About You? On the Privacy Implications of Eye Tracking. In: Friedewald M., Önen M., Lievens E., Krenn S., Fricker S. (eds) Privacy and Identity Management. Data for Better Living: AI and Privacy. Springer International Publishing, 226–241.
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Kröger, J.L. and Raschke, P. (2019). Is My Phone Listening in? On the Feasibility and Detectability of Mobile Eavesdropping. In: Foley S. (eds) Data and Applications Security and Privacy XXXIII (DBSec 2019). Springer International Publishing, 102–120.
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Raschke, P. and Zickau, S. and Kröger, J. L. and Küpper, A. (2019). Towards Real-Time Web Tracking Detection with T.EX – The Transparency EXtension. In: Naldi M., Italiano G., Rannenberg K., Medina M., Bourka A. (eds) Privacy Technologies and Policy (APF 2019). Springer International Publishing, 3–17.
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Lutz, O.HM. and Kröger, J.L. and Schneiderbauer, M. and Hauswirth, M. (2019). Surfing In Sound: Sonification of Hidden Web Tracking. In: Proceedings of the 25th International Conference on Auditory Display (ICAD 2019). Georgia Institute of Technology, 306–309.
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Kröger J.L. (2019) Unexpected Inferences from Sensor Data: A Hidden Privacy Threat in the Internet of Things. In: Strous L., Cerf V. (eds) Internet of Things. Information Processing in an Increasingly Connected World. Springer International Publishing, 147–159.
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Kröger, J. L. and Raschke, P. and Bhuiyan, T. R. (2019). Privacy Implications of Accelerometer Data: A Review of Possible Inferences. Proceedings of the 3rd International Conference on Cryptography, Security and Privacy (ICCSP). ACM, 81–87.
(Best Presentation Award)
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Kröger, J.L. (2018). Sind kleine und mittelständische Onlinehändler bereit für die Zukunft? Eine qualitative Studie nach dem Grounded-Theory-Ansatz zu den Herausforderungen und Zukunftsperspektiven einer Branche im Umbruch (Masterarbeit). Technische Universität Berlin. https://doi.org/10.13140/RG.2.2.26873.29289/4
Working Papers
Kröger, J.L., Lutz, O.HM. and Ullrich, S. (2021). The myth of individual control: Mapping the limitations of privacy self-management. Available at SSRN: http://dx.doi.org/10.2139/ssrn.3881776
Kröger, J.L., Raschke, P., Percy Campbell, J. and Ullrich, S. (2021). Surveilling the Gamers: Privacy Impacts of the Video Game Industry. Available at SSRN: http://dx.doi.org/10.2139/ssrn.3881279
Kröger, J.L., Miceli, M. and Müller, F. (2021). How Data Can Be Used Against People: A Classification of Personal Data Misuses. Available at SSRN: http://dx.doi.org/10.2139/ssrn.3881279