General Community > Site Comments, Issues and Concerns

Verification step is a serious usability problem

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Arantor:

--- Quote ---but blind and other handicapped users may have a problem here.
--- End quote ---

And therein lies the problem. None of the current solutions that 'fix the CAPTCHA problem' adequately deal with such users, and when they do offer an alternative, it's invariably an audio CAPTCHA - and you know what? Audio transcription of samples made deliberately clear so as to be understandable is a reasonably easy task.

In fact decoding SMF's current audio CAPTCHA is in fact *EASIER* than OCR'ing the visual CAPTCHA. (And interestingly, it's how reCAPTCHA was first broken in any kind of widespread fashion)

AAAAAAAA:

--- Quote from: MrPhil on July 17, 2012, 07:54:45 PM --- Other kinds of visual puzzles are possible, such as "identify the missing piece of the puzzle", or "what time does the clock face show" (use ornate hands, rotate the picture in random amounts, reverse the image...
--- End quote ---
My mod randomly does some of those tricks, like rotating, stretching a part of the image or zooming in on a part of each image.

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