RE: CAPTCHA Update--An extended opportunity

Hi Janina,

Several years ago, I wrote about CAPTCHA as part of my review, for the COGA TF, of web security technologies. (That work was the foundation of the Accessible Authentication SC work I am leading.) See the first 3 blog posts of this list<>. I hope you find something helpful.


John Rochford<>
University of Massachusetts Medical School
Eunice Kennedy Shriver Center
Director, INDEX Program
Faculty, Family Medicine & Community Health

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-----Original Message-----
From: Janina Sajka <>
Sent: Monday, June 3, 2019 10:09 AM
To:;; apa Lisa Seeman <>; White, Jason J <>;
Subject: CAPTCHA Update--An extended opportunity


While APA's recent Call for Consensus agreed on publishing a second wide review CAPTCHA draft, we were unable to announce our publication widely as we had expected to do. This is because the announcement of a new agreement between W3C and WHAT was published at the same time we intended to post our review request. We did not want to compete, or overshadow the important development with HTML.

Consequently, we are pushing back the formal announcement and publication of our second wide review CAPTCHA draft until next week.

This provides an extended opportunity for comments, but also an extended opportunity to affect the draft that will be the second wide review publication itself.

Here's the new schedule as it now stands:

1.)  Edits to the Editor's Draft for inclusion in the wide review

publication will be accepted through 23:59 (Midnight) Boston Time this coming Sunday 7 June.

2.)  A brief CfC to publish will be conducted by APA next week as

there are already substantive edits proposed for the Editor's Draft on github.

3.)  The second wide review publication, together with blog posts and

other announcements are now scheduled for Friday 14 June.

4.)  The public comment period will run through 23:59 (Midnight)

Boston Time on Sunday 14 July.

*** Considerations  to Bear in Mind ***

Please note several editorial corrections are already present in the Editor's Draft, and others are queued for addition as I write this


One suggestion from the COGA Task Force, which I believe came from Jennie Delisi, is now used in Sec. 1.2 of the Editor's Draft here:

Specifically, we now cite "auditory processing disorders" as an example, and I believe this enhances the document in several ways including by providing a more parallel syntactic sentence structure in that introductory paragraph.

Further suggestions are most welcome. However, please note this document does not discuss disabilities per se. Rather, it discusses functional impediments faced by people with disabilities in specific CAPTCHA approaches. Therefore, we're most interested in hearing of any functional impediments not currently covered for specific CAPTCHA approaches. We are also particularly interested in any CAPTCHA approaches we may have not discussed.




Janina Sajka

Linux Foundation Fellow

Executive Chair, Accessibility Workgroup:

The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)

Chair, Accessible Platform Architectures

Received on Monday, 3 June 2019 18:37:22 UTC