Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Article number | 5959144 |
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<mark>Journal publication date</mark> | 03/2012 |
<mark>Journal</mark> | IEEE Internet Computing |
Issue number | 2 |
Volume | 16 |
Number of pages | 8 |
Pages (from-to) | 44-51 |
Publication Status | Published |
<mark>Original language</mark> | English |
Most user interfaces use color, which can greatly enhance their design. Because the use of color is typically a usability issue, it rarely causes security failures. However, using color when designing CAPTCHAs, a standard security technology that many commercial websites apply widely, can have an impact on usability and interesting but critical implications for security. Here, the authors examine some CAPTCHAs to determine whether their use of color negatively affects their usability, security, or both.