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Blind and Human: Exploring More Usable Audio CAPTCHA Designs Valerie Fanelle, Sepideh Karimi, Aditi Shah, Bharath Subramanian, and Sauvik Das The Sixteenth Symposium on Usable Privacy and Security August 7th - 11th, 2020 High attention levels

  1. Blind and Human: Exploring More Usable Audio CAPTCHA Designs Valerie Fanelle, Sepideh Karimi, Aditi Shah, Bharath Subramanian, and Sauvik Das The Sixteenth Symposium on Usable Privacy and Security August 7th - 11th, 2020

  2. High attention levels ❖ Challenges with Emphasis on working ❖ memory Audio Audio interference with ❖ Assistive Technology CAPTCHAs Longer time to solve ❖ Audio = 51 sec. ➢ Visual = 9.8 sec. ➢ Lower success rates ❖ Audio = 50% ➢ Visual = 93% ➢

  3. Our Prototypes

  5. Summary of Key Results

  6. THANK YOU! Valerie Fanelle vfanelle@gmail.com Sepideh Karimi svkarimi15@gmail.com Aditi Shah shahaditi1992@gmail.com Bharath Subramanian bharathsubraman@gmail.com Sauvik Das sauvik@gatech.edu

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