Security review request for WCAG 2.1

The Accessibility Guidelines Working Group has published an updated 
Working Draft of Web Content Accessibility Guidelines (WCAG) 2.1:
https://www.w3.org/TR/WCAG21/

This draft has all the new Success Criteria that the Working Group plans 
to add to WCAG 2.1, so this is the version on which the WG requests wide 
review and horizontal review. The Working Group plans to publish another 
Working Draft in November that addresses comments and then transition to 
CR, so comments on this draft are critical. Comments are requested by 
*10 October 2017*.

To comment, the Working Group requests input be filed as new issues at:
https://github.com/w3c/wcag21/issues/
or by email to:
public-agwg-comments@w3.org <mailto:public-agwg-comments@w3.org>

Success Criteria that may particularly need Security review:

  * Accessible Authentication
    https://www.w3.org/TR/WCAG21/#accessible-authentication