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Colour, usability and security: a case study

Lookup NU author(s): Ahmad El Ahmad, Dr Jeff Yan

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This is the final published version of a report that has been published in its final definitive form by School of Computing Science, University of Newcastle upon Tyne, 2010.

For re-use rights please refer to the publisher's terms and conditions.

Abstract

The use of colour in user interfaces is extensive. It is typically a usability issue, and has rarely caused any security concerns. In this article, we show that the use of colours in the design of CAPTCHA, a standard security technology that has found widespread applications in commercial websites, can have interesting but critical implications on both security and usability.

Publication metadata

Author(s): El Ahmad AS, Yan J

Publication type: Report

Publication status: Published

Series Title: School of Computing Science Technical Report Series

Year: 2010

Pages: 14

Print publication date: 01/05/2010

Source Publication Date: May 2010

Report Number: 1203

Institution: School of Computing Science, University of Newcastle upon Tyne

Place Published: Newcastle upon Tyne

URL: http://www.cs.ncl.ac.uk/publications/trs/papers/1203.pdf

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