## 1 Introduction
Consequently, the further examining of users' social and demographic attributes, which is lacking in previous research, will provide a deeper understanding regarding the factors that affect their BS acceptance and will lead to the development of new BS methodologies that are more user-oriented. Considering this research gap, as well as the fact that BS adoption in Greece, both in public and private services, is still in an early stage, this paper attempts to go beyond the existing literature for the Greek cases by examining the University of the Aegean (UA) students' case. University of the Aegean is a regional university, located in six islands, serving a large number of students, coming from all country's regions, and therefore valuable insights can be provided that will help developers to produce new designs regarding the BS methods and techniques. Our study aims to identify which are the students' perceptions on the BS acceptance, by deploying exploratory research through a quantitative instrument, based on constructs of technology-acceptance models and previous research on BS acceptance. To our best knowledge, such a large-scale study on Greek users has not been elaborated yet, despite such studies having been conducted in other countries. Therefore, our survey, as a descriptive research design, targets to gain information about students' views on the acceptance and adoption of BSs, allowing trends to be identified and analyzed and examining how different demographics respond to different variables [11]. In this regard, despite the acknowledged limitation that no further empirical analysis has been provided, we support that the data collected and analyzed in a descriptive way provide a base for further research, helping to obtain a comprehensive understanding regarding the factors which affect this. Summarizing the insights gained from the UA students, our research shows that specific social and demographic attributes, namely gender, age, study level, year of study, professional profile and fathers' occupation are associated with students willing to use BS, while highly privacy and social concerns are indicated, contributing to the overall enhancement of the emerging literature in BS acceptance and adoption. For instance, and not surprisingly, due to unfamiliarity with BS in Greece, it is indicated that almost half of the students were not aware of BS (49%) before this survey. Among the BS-familiar students, the fingerprint (97%) and facial recognition techniques (91%) have been adopted in their daily practices, concerning specifically the unlocking of their mobile phones, while the most non-familiar technique is keystroke analysis. In particular, women (64%) consider the accurate recognition to be the most important advantage of BS deployment. Furthermore, age, employment status and father's occupation act as differentiators regarding BS security and privacy concerns. The age group of 18-22 declares a greater concern for personal data risks (55%) compared to the rest of the groups, while all of the students (100%), working as private employees, are concerned that their registered data due to BS, can be easily accessed by third parties. University of the Aegean students are skeptical regarding services that use their biometric information due to the possibility for their security and privacy to be violated. Despite the BS early exploitation in Greece, their use in Greek HEIs internal areas is a feasible scenario, provided that skepticism about data security and privacy protection should be taken into consideration, while the creation of technical and safety standards will be ensured. For determining and measuring the factors that affect students' BS acceptance from their own perspective, the results show that Greek students are willing to use BS techniques if the concerns that they face can be addressed.