[nabs-l] CAPTCHA Alternatives

David Dunphy djdrocks4ever at gmail.com
Wed Aug 11 03:02:43 UTC 2010


Give it a time. Any bot will crack that. The recaptcha system, while it's a 
captcha, honestly works great. And it helps to digitize books so we can read 
them online. While I appreciate this alternative to captchas, I don't see it 
as a very effective way to deal with spam, and therefore, don't see many 
sites adopting it all that quickly if at all. A bot can be programmed to 
type and act like a human is entering things in. Sadly, while it has its 
pitfalls if sites don't incorporate it correctly, captcha I think has its 
advantages. Tools like Solona and Web Visum for Firefox seem to do pretty 
well at handling such obstacles.
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----- Original Message ----- 
From: "Peter Donahue" <pdonahue1 at sbcglobal.net>
To: "National Association of Blind Students mailing list" 
<nabs-l at nfbnet.org>
Sent: Tuesday, August 10, 2010 8:30 PM
Subject: [nabs-l] CAPTCHA Alternatives


> Hello again everyone,
>
>    There are all ready alternatives to Visual CAPTCHAS for protecting
> sensitive information and Web resources from being hacked or spammed. It's
> called "Word verification." In word verification a user is given a very
> simple question or two to answer for example, "What is today?" The
> individual is then required to type in their answer or is presented with a
> list of possible answers to choose from. The user types in the correct
> response or chooses the right one from the list. Assuming they make the
> correct choice they are then granted access to restricted parts of a Web
> site or can submit a Web form.
>
>    Word verification utilities have the ability to detect whether the
> response comes from a keyboard or if it is entered by another computer, "A
> bot." Once this determination is made the legitimate user can submit their
> form or is granted restricted access privileges while the bot is denied. I
> have heard from several individuals that have encountered Web sites that 
> use
> this kind of verification instead of visual verification "CAPTCHAS." And
> best of all word verification can be used audibly or tactually and without
> the involvement of third party solvers.
>
> Peter Donahue
>
>
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