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The Usable Security Case

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Human-Centred Web Adaptation and Personalization

Part of the book series: Human–Computer Interaction Series ((HCIS))

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Abstract

Security mechanisms are of critical importance in today’s interactive systems. While the primary goal of such mechanisms is to preserve security of information and premises, researchers and practitioners have come to understand the critical importance of usable security which is an area focusing on how to design and develop security mechanisms that respect human performance and their goals within an interactive system. Motivated by recent research works that underpinned the necessity of usability in security mechanisms, in this chapter we present an alternative approach to current state-of-the-art practices with the aim to achieve a balance between usability and security of two widely deployed and critical security mechanisms. In particular, we propose a set of human-centred design guidelines for adapting and personalizing user authentication and CAPTCHA mechanisms. Our intention is to provide the most optimized condition, in terms of design type and complexity level, based on specific human cognitive factors. The reader can further realize the adaptation effects and added value of this approach through a user study that investigated user interactions on given security tasks. According to these, the personalized condition of the user security tasks significantly improved task completion performance compared to the non-personalized one. Results of a post-study qualitative survey analysis also revealed that users perceived the improved usability of the personalized condition.

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Authors and Affiliations

  1. Suite Engineering UX, Products & Innovation, SAP SE, Walldorf, Germany

    Panagiotis Germanakos

  2. Department of Computer Science, University of Cyprus, Nicosia, Cyprus

    Panagiotis Germanakos & Marios Belk

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  1. Panagiotis Germanakos
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  2. Marios Belk
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Germanakos, P., Belk, M. (2016). The Usable Security Case. In: Human-Centred Web Adaptation and Personalization. Human–Computer Interaction Series. Springer, Cham. https://doi.org/10.1007/978-3-319-28050-9_8

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