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Designing Mobile Friendly CAPTCHAs: An Exploratory Study

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Proceedings of the 31st International BCS Human Computer Interaction Conference (HCI 2017) (HCI)

digital make-believe, with delegates considering our expansive

3 - 6 July 2017

CAPTCHAs, Smart Phones, Mobile Devices, Usability, Design Guidelines

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      Abstract

      CAPTCHAs (Completely Automated Public Turing Test to Tell Computers and Humans Apart) are one of the most widely used authentication mechanisms that help to prevent online service abuse. With the advent of mobile computing, mobile devices such as smartphones and tablets have be-come the primary way people access the Internet. As a result, increasing attention has been paid to designing CAPTCHAs that are mobile friendly. Although such CAPTCHAs generally show their ad-vantages over traditional ones, it is still unclear what the best practices are for designing a CAPTCHA scheme that is easy to use on mobile devices. In this paper, we present an exploratory study that focuses on developing a more holistic view of usability issues with interactive CAP-TCHAs to inform design guidance. This is done through investigating the usability performance of seven mobile friendly CAPTCHA schemes representing five different CAPTCHA types.

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      Telling humans and computers apart automatically

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        Enhancing the explanatory power of usability heuristics

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          Usability of CAPTCHAs or usability issues in CAPTCHA design

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            Author and article information

            Affiliations
            Bournemouth University

            Fern Barrow, Poole, BH12 5BB
            Contributors
            Conference
            July 2017
            July 2017
            : 1-7
            10.14236/ewic/HCI2017.92
            © Jiang et al. Published by BCS Learning and Development Ltd. Proceedings of British HCI 2017 – Digital Make-Believe. Sunderland, UK.

            This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

            Proceedings of the 31st International BCS Human Computer Interaction Conference (HCI 2017)
            HCI
            31
            Sunderland, UK
            3 - 6 July 2017
            Electronic Workshops in Computing (eWiC)
            digital make-believe, with delegates considering our expansive
            Product
            Product Information: 1477-9358 BCS Learning & Development
            Self URI (journal page): https://ewic.bcs.org/
            Categories
            Electronic Workshops in Computing

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