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- Subject: RE: Simple CAPTCHA?
- From: "Gavin Kistner" <gavin.kistner@...>
- Date: Mon, 20 Aug 2007 13:18:20 -0600
> Anyone has a suggestion for a simple (simplistic?) CAPTCHA mechanism?
> By simple, I mean not necessarily requiring heavy duty image
> or such...
A math-based CAPTCHA is exactly what I designed for a (Ruby) quiz a
couple years ago. I cannot vouch for its effectiveness versus bots, but
it seemed like it would be a sufficiently annoying amount of custom
programming for spammers to fight.