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Success Criterion · WCAG 3.3.8

Accessible Authentication (Minimum)

A cognitive function test (such as remembering a password or solving a puzzle) is not required for any step in an authentication process unless that step provides at least one of the following: an alternative authentication method that does not rely on a cognitive function test, a mechanism to assist the user in completing the cognitive function test, or an object recognition test where the object is personally chosen by the user.

Level AAWCAG 2.2Understandable3.3 · Input Assistance
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Success criterion

What WCAG 3.3.8 requires

Summarized directly from the official Understanding document so teams can quote the requirement accurately.

All non-text content that is presented to users must expose an equivalent text-based alternative unless a documented exception applies.

Fast facts

Conformance level
Level AA
WCAG version introduced
WCAG 2.2
Principle
Understandable
Guideline
3.3 · Input Assistance

Implementation checklist

Capture progress and blockers

  • Document how this criterion impacts your product and note any exceptions.
  • Describe the user experience goal in plain language for designers and engineers.
  • List the components, templates, or workflows that must meet this requirement.
  • Capture manual and automated testing steps for future audits.

Testing ideas

Prove conformance with evidence

  • Pair automated linting with human review to verify visual, auditory, or temporal aspects.
  • Use assistive technology walkthroughs (screen reader, keyboard, switch, voice) to validate behavior.
  • Capture screenshots or recordings that demonstrate pass/fail conditions.

Related success criteria

More from Input Assistance (3.3)

View all criteria