[vicsireland] Re: research on audio CAPTCHA
- From: "Flor Lynch" <florlync@xxxxxx>
- To: <vicsireland@xxxxxxxxxxxxx>
- Date: Thu, 26 Jun 2008 11:57:17 +0100
Audio CAPTCHA is a bad idea, since it also discriminates against people with
hearing impairments (or none). One instance recently: There is a
classifieds list called craigslist in America, for which the list owners
felt obliged to make the audio CAPTCHA much more difficult than it had been
recently, due to advances in voice-recognition technology and mass sign-ups
that had been beginning to occur. Now there is a petition asking to change
this again, since the audio is so 'painful' for those blind with no hearing
impairments as well. (As i said, it is a US-based list. Some will have
heard of craigslist.)
I favour the numbers alternative. Surprisingly, it has been tried by some
organisations and found to be successful and no bots have yet abused it
apparently (This is not to say that such won't ever ahappen. But the days
of image CAPTCHA are numbered, since machines are beginning to recognise the
distorted images of alphanumeric characters.) Finally, as we are being
victimised it isn't really our job to make the arguments in favour of visual
or audio CAPTCHA for those who would deploy it. If CAPTCHA must be, then we
ought to have three or four alternative versions of CAPTCHA.
----- Original Message -----
From: "Declan Meenagh" <dmeenagh@xxxxxxxxx>
To: <vicsireland@xxxxxxxxxxxxx>
Sent: Thursday, June 26, 2008 11:19 AM
Subject: [vicsireland] Re: research on audio CAPTCHA
I recently read an artical saying that visual capshas are easy to get
around. They don't work at all. The problem with questions like that is
that computers can be used to get around them. How would you get around
this. I thaught of mis spelling something so it would sound the same with a
screen reader, but wouldn't look the same for bots.
2008/6/26 Claude Saulnier <claude.saulnier@xxxxxxxxxxxx>:
> Hi
>
> On the Captcha matter, we are doing some research ourselves.
>
> In order to avoid captcha and the audio, and the complexity and so on, we
> were thinking of using a question such as what is 2 + 3 and you then need
> to
> enter the result to validate the form. I have seen it used and I like the
> simplicity of it.
>
> Have you seen this type of stuff and if so, what is your opinion?
>
> Tx
>
> Claude Saulnier
> www.wandsoft.com
>
>
>
>
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