TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Dehling, Florian
A1  - Tolsdorf, Jan
A1  - Federrath, Hannes
A1  - Lo Iacono, Luigi
T1  - Internet Users' Willingness to Disclose Biometric Data for Continuous Online Account Protection: An Empirical Investigation
JF  - PoPETs (Proceedings on Privacy Enhancing Technologies)
N2  - Continuous authentication has emerged as a promising approach to increase user account security for online services. Unlike traditional authentication methods, continuous authentication provides ongoing security throughout the session, protecting against session takeover attacks due to illegitimate access. The effectiveness of continuous authentication systems relies on the continuous processing of users' sensitive biometric data. To balance security and privacy trade-offs, it's crucial to understand when users are willing to disclose biometric data for enhanced account security, addressing inevitable privacy concerns and user acceptance. To address this knowledge gap, we conducted an online study with 830 participants from the U.S., aiming to investigate user perceptions towards continuous authentication across different classes of online services. Our analysis identified four groups of biometric traits that directly reflect users' willingness to disclose them. Our findings demonstrate that willingness to disclose is influenced by both the specific biometric traits and the type of online service involved. User perceptions are strongly shaped by factors such as response efficacy, perceived privacy risks associated with the biometric traits, and concerns about the service providers' handling of such data. Our results emphasize the inadequacy of one-size-fits-all solutions and provide valuable insights for the design and implementation of continuous authentication systems.
KW  - User Privacy Perception
KW  - factor analysis
KW  - Usable Privacy Security
KW  - Continuous Authentication
KW  - Biometric Traits
KW  - PLS-SEM
Y1  - 2024
UN  - https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-84843
SN  - 2299-0984
SS  - 2299-0984
U6  - https://doi.org/10.56553/popets-2024-0060
DO  - https://doi.org/10.56553/popets-2024-0060
VL  - 2024
IS  - 2
SP  - 479
EP  - 508
S1  - 30
PB  - Privacy Enhancing Technologies Symposium Advisory Board
ER  -