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  3. September 2008

Re: CAPTCHA image validation in web form

What about using a sound file, instead?

Actually that's relatively common. Not "substituting" but augmenting w/a
sound. It's especially important if you care about section 508 and
allowing non-visual browsers into your site.

...generating seemingly random DOM elements, and JavaScript, that are
injected into the page...

Um, but if they're on the page then can't the bot "see" them too and
render your captcha useless? I guess you could do stuff like "What's the
third word of the fourth paragraph on this page".

-Walden

--
Walden H Leverich III
Tech Software
(516) 627-3800 x3051
WaldenL@xxxxxxxxxxxxxxx
http://www.TechSoftInc.com

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)

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