Wednesday Jul 25, 2007

Knowledge domain or region specific "CAPTCHA" human/bot tests

Since generic CAPTCHA type human challenges are failing I wonder if anyone is making use of domain specific knowledge or locale specific knowledge in their bot challenges? For example, instead of the arithmetic challenge on my blog, I would ask a Sun-specific question such as:

  • What popular VM-based programming language was developed by Sun?
  • How many threads are in a T2000 core?

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