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