Colour, usability and computer security

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• Jeff Yan, Newcastle University
• Thursday 01 July 2010, 16:15-17:15
• Room SS03, Computer Laboratory, William Gates Building.

If you have a question about this talk, please contact Jonathan Anderson.

Note unusual time

The use of colour in user interfaces is extensive. It is typically a usability issue, and has rarely caused any security concerns. In this talk, I 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. For example, we have broken multiple CAPTCH As, including the scheme deployed by Megaupload.com (one of the largest file sharing websites), by exploiting the colour patterns in these schemes.

This talk is part of the Computer Laboratory Security Seminar series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge talks
• Computer Laboratory Security Seminar
• Department of Computer Science and Technology talks and seminars
• Interested Talks
• Room SS03, Computer Laboratory, William Gates Building
• School of Technology
• Security-related talks
• Trust & Technology Initiative - interesting events
• bld31

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