# WCAG 2.2 – 3.3.9 Accessible Authentication (Enhanced)

- Level: AAA
- Principle: 3 Understandable
- Guideline: 3.3 Input Assistance
- Introduced in: WCAG 2.2

## What the rule requires

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

- People with cognitive disabilities

## Sources

- [This rule on wcag.dehl.net](https://wcag.dehl.net/en/wcag/3-3-9/)
- [Official W3C explanation](https://www.w3.org/WAI/WCAG22/Understanding/accessible-authentication-enhanced)
- [Techniques (WCAG Quick Reference)](https://www.w3.org/WAI/WCAG22/quickref/#accessible-authentication-enhanced)

_Plain-language explanation. Only the original W3C text is normative._