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CAPTCHA v2
CAPTCHA Note Update
Contents
- 1 CAPTCHA Note Update
- 1.1 The Current Document
- 1.2 Revisions Needed to Current CAPTCHA Note
- 1.3 New Information & Research
- 1.4 CAPTCHA Email Threads (post CAPTCHA Note Release)
- 1.4.1 CAPTCHA Threads on Protocols & Formats Working Group List (w3c-wai-pf)
- 1.4.2 CAPTCHA Implementors' Threads on WAI-XTech
- 1.4.2.1 WAI-XTech Thread 1: "reCAPTCHA" and "captcha workarounds"
- 1.4.2.2 WAI-XTech Thread 2: Progress Report on CAPTCHA (July 2007)
- 1.4.2.3 WAI-XTech Thread 3: reCAPTCHA Imnplementation Problems (July 2007)
- 1.4.2.4 WAI-XTech Thread 4: reCAPTCHA: audio alternativess and audio formats (July 2007)
- 1.4.2.5 WAI-XTech Thread 5: note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems)
- 1.4.2.6 WAI-XTech Thread 6: reCAPTCHA: AOL's CAPTCHA
- 1.4.2.7 WAI-XTech Thread 7: wikimedia CAPTCHA issue report and responses (August 2007)
- 1.4.2.8 WAI-XTech Thread 8: Getting Past Google's CAPTCHA (September 2008)
- 1.4.3 Targetted Discussion Threads on WAI-XTECH (wai-xtech@w3.org)
- 1.4.4 CAPTCHA Threads on HTML Accessibility Task Force List (public-html-a11y)
The Current Document
- Inaccessibility of CAPTCHA: Alternatives to Visual Turing Tests on the Web (W3C Note, 2005-11-23)
- original author: Matt May
Revisions Needed to Current CAPTCHA Note
- revision owner: Matt May
- PFWG Issue 71 - Update CAPTCHA Note
- associated PF Action Items:
- CAPTCHAs depending on language awareness (or not), relates to WCAG comment LC-2534 discussed in 20 October 2011
New Information & Research
Research: Surveys
Usage Guides
- 10 Things to Check Before Using a CAPTCHA alternate human verification techniques
CAPTCHA "Busting" Tools
Note: Services are listed alphabetically. Inclusion or exclusion from this list does not imply anything other than the compiler's ignorance.
CAPTCHA alternatives
- Accessible Text CAPTCHA Logic Questions - may not be any more accessible
- SQRL authentication system
- WCAG WG collection of Captcha Alternatives and thoughts
- Credential Management Level 1 from the Web Application Security Working Group
CAPTCHA Email Threads (post CAPTCHA Note Release)
CAPTCHA Threads on Protocols & Formats Working Group List (w3c-wai-pf)
NOTE: The w3c-wai-pf@w3.org emailing list's archives are member-confidential.
PF Thread 1: CAPTCHA combinatorics
CAPTCHA Implementors' Threads on WAI-XTech
NOTE: The wai-xtech@w3.org emailing list's archives are public.
WAI-XTech Thread 1: "reCAPTCHA" and "captcha workarounds"
WAI-XTech Thread 2: Progress Report on CAPTCHA (July 2007)
- Progress Report on CAPTCHA & request for assistance & advice (2007-07-11)
- Ben Maurer, Discussions on alternate CAPTCHA implementations (2007-07-12)
- Al Gilman, have asked if there is prior art in IVR space (2007-07-14)
WAI-XTech Thread 3: reCAPTCHA Imnplementation Problems (July 2007)
- Gregory J. Rosmaita, Re: reCAPTCHA Implementation Problems (2007-07-11)
- Dave Poehlman, Re: reCAPTCHA Implementation Problems (2007-07-12)
- Joshue O Connor, Re: reCAPTCHA Implementation Problems (2007-07-12)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-12)
- David Poehlman, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Dave Poehlman, Re: reCAPTCHA Implementation Problems (2007-07-12)
- Gregory J. Rosmaita, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Joshue O Connor, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Dave Poehlman, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Gregory J. Rosmaita, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Joshue O Connor, Re: reCAPTCHA Implementation Problems (2007-07-17)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-14)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-14)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-14)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-14)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-14)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-14)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-14)
- Al Gilman, Re: reCAPTCHA Implementation Problems (2007-07-14)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-16)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-16)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-16)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-16)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-16)
- Ben Maurer, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Gez Lemon, Re: reCAPTCHA Implementation Problems (2007-07-13)
- Gregory J. Rosmaita, reCAPTCHA: focus moves after auido fired, some thoughts (2007-07-13)
- Ben Maurer, Re: reCAPTCHA implementation problems (2007-07-13)
WAI-XTech Thread 4: reCAPTCHA: audio alternativess and audio formats (July 2007)
- Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-17)
- Joshue O Connor, Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-17)
- Ben Maurer, Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-18)
- Gez Lemon, Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-18)
- Ben Maurer, Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-18)
- Charles McCathieNevile Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-18)
- Ben Maurer, Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-18)
- Gez Lemon, Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-18)
- Joshue O Connor, Re: [note: two-level nav in WAI-ARIA (was CAPTCHA Implementation Problems (2007-07-18)
WAI-XTech Thread 6: reCAPTCHA: AOL's CAPTCHA
- Don Evans, reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Dave Poehlman, reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Don Evans, RE: reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Gez Lemon, Re: reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Ben Maurer, Re: reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Gez Lemon, Re: reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Ben Maurer, Re: reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Gez Lemon, Re: reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Ben Maurer, Re: reCAPTCHA: AOL's CAPTCHA (2007-07-18)
- Al Gilman, label text (2007-07-19)
WAI-XTech Thread 7: wikimedia CAPTCHA issue report and responses (August 2007)
WAI-XTech Thread 8: Getting Past Google's CAPTCHA (September 2008)
- Dave Poehlman, Re: Free-ARIA Mailing List Created (2008-09-09)
- David Bolter, Re: Free-ARIA Mailing List Created (2008-09-09)
- Dave Poehlman, Re: Free-ARIA Mailing List Created (2008-09-09)
- Janina Sajka, Re: Free-ARIA Mailing List Created (2008-09-09)
Targetted Discussion Threads on WAI-XTECH (wai-xtech@w3.org)
WAI-XTech Thread 2.1: Authentification (March 2010)
CAPTCHA Threads on HTML Accessibility Task Force List (public-html-a11y)
HTML TF Thread 1: keep CAPTCHA out of HTML5 (March 2010)
- keep CAPTCHA out of HTML5 (Gregory J. Rosmaita, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Sylvia Pfeiffer, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Janina Sajka, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (John Foliot, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Sylvia Pfeiffer, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Matt May, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (John Foliot, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Sylvia Pfieffer, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Laura Carlson, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Sylvia Pfieffer, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Steven Faulkner, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Matt May, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (John Foliot, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Maciej Stachowiak, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Laura Carlson, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (Laura Carlson, 2010-03-17)
- Re: keep CAPTCHA out of HTML5 (John Foliot, 2010-03-18)
- Re: keep CAPTCHA out of HTML5 (Charles McCathieNevile, 2010-03-18)
- Re: keep CAPTCHA out of HTML5 (Dave Singer, 2010-03-18)
- Re: keep CAPTCHA out of HTML5 (Matt May, 2010-03-18)
- Re: keep CAPTCHA out of HTML5 (Gregory J. Rosmaita, 2010-03-18)
- Re: keep CAPTCHA out of HTML5 (Laura Carlson, 2010-03-19)
- Re: keep CAPTCHA out of HTML5 (Laura Carlson, 2010-03-19)
- Re: keep CAPTCHA out of HTML5 (Mike Smith, 2010-03-19)
HTML TF Thread 2: CAPTCHA alternatives/pitfalls
HTML TF Thread 3: Authentification (was: CAPTCHA alternatives/pitfalls) March 2020
NOTE: This thread has been moved to wai-xtech@w3.org
HTML TF Thread 4: Draft CAPTCHA Survey