Decoding The CAPTCHAs Puzzle: Barriers, Solutions, and Accessibility
taught by: Lisan Hasnain
Session Summary
CAPTCHAs are widely used to distinguish humans from bots, but they often create barriers for people with disabilities. This session explores the accessibility challenges of CAPTCHAs, their impact on users, and practical solutions to make authentication more accessible.
Description
This session will explore how CAPTCHAs, while important for security, often create barriers for users with disabilities. Using WCAG guidelines, we’ll examine the different ways CAPTCHAs impact accessibility, from keyboard navigation challenges to reliance on sensory perception and cognitive tasks. Many common CAPTCHA types, including visual, audio, and interactive puzzles, can exclude users who rely on assistive technology. We will discuss real-world examples of these barriers and highlight alternative authentication methods that improve accessibility. Participants will learn about best practices for designing and implementing CAPTCHAs that comply with WCAG while maintaining security. By the end, attendees will have a deeper understanding of the accessibility challenges CAPTCHAs present and the tools available to create more inclusive authentication. Raising awareness about these barriers is essential in ensuring that digital security measures do not come at the cost of accessibility and that all users have equal access to online platforms.
Practical Skills
- Identify the accessibility barriers of CAPTCHAs and their impacts on users with disabilities.
- Explore practical strategies and alternative authentication methods to make CAPTCHAs more accessible for all users.
- Learn how different WCAG criteria illustrate the challenges CAPTCHAs pose for users and how to address them effectively.