- From: Shawn Henry <shawn@w3.org>
- Date: Mon, 9 Sep 2019 16:37:39 -0500
- To: Karen Lewellen <klewellen@shellworld.net>, "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>
Hi Karen, Inaccessibility of CAPTCHA: Alternatives to Visual Turing Tests on the Web W3C Working Group Note 23 August 2019 https://www.w3.org/TR/turingtest/ "2.1.3 Logic Puzzles ... Simple mathematical or word puzzles ... ...The use of logic puzzles as a CAPTCHA technique, however, introduces substantial barriers to access for people with language, learning or cognitive disabilities. An individual with dyscalculia will understandably find even simple arithmetic puzzles challenging. ... " -- https://www.w3.org/TR/turingtest/#logic-puzzles Hope that helps. Best, ~Shawn <http://www.w3.org/People/Shawn/> On 9/9/2019 4:10 PM, Karen Lewellen wrote: > Hi all, > I am currently involved in a discussion on the Google accessibility list regarding the use of math problems as a form of captcha. the individual is stating that such a substitution carries no security whatsoever. > Given the places where I have personally, and thankfully found the math problem verification present, I am wanting to share the recent w3c information on their use. > Can anyone give me a simple link to a relevant section, or share an article discussing math problems as captcha challenges with their pros / cons? > Thanks, > Karen > >
Received on Monday, 9 September 2019 21:37:45 UTC