Level AAASince WCAG 2.2New in 2.2
3.3.9 Accessible Authentication (Enhanced)
Guideline 3.3: Input Assistance – Forms help people avoid and correct mistakes.
What does the rule require?
Logging in works with no memory or thinking task at all – not even recognising objects or personal pictures.
How to get it right
Drop image CAPTCHAs (“select all traffic lights”). Rely on passkeys or confirmation on a second device.
Who benefits most?
- People with cognitive disabilities
Official wording
This page explains the rule in simple words. Only the original W3C text is normative.
- “Understanding Accessible Authentication (Enhanced)” at W3C (external site)
- Techniques in the WCAG Quick Reference (external site)