Posted by murfitUK on 05/01/07 03:25

I agree with you Stuart. I've got perfect eyesight but often can't work out
what the letters/numbers are supposed to be. All fuzzy or disjointed or
with lines and smudges through them.

I know some sort of human interface is needed to cut down on spam etc but
often I just give up.




"Stuart Millington" <news@dsv1.co.uk> wrote in message
news:cluc33h38f3efb0bjbdh381saa0h199adq@4ax.com...
> On Mon, 30 Apr 2007 15:57:54 -0700, zach <wackzingo@gmail.com> wrote:
>
>>type. At least for me this seemed faster and easier. I get confused with
>>some captcha's because I can't tell if a letter is an l or i or o and 0.
>
> Indeed, in many image based schemes it's hard for sighted, let alone
> partially sighted, people to see the difference between a zero and an
> "oh".
>
>>Just a thought on speed and usability. Is there a security reason why
>>using only numbers shouldn't be used?
>
> In terms of usability, image-only schemes should never be used (in the
> UK at least), as they discriminate in violation of the DDA 1995 unless
> adequate, alternative, provision is made.
>
> IME the number of sites using these techniques who bother to implement
> such alternatives are close to zero :-(

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