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20212026
most citedA Low-Cost Attack against the hCaptcha System

13 citations · 23 across the 14 of their papers we have counts for

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cs.CR2022

aaeCAPTCHA: The Design and Implementation of Audio Adversarial CAPTCHA

Md Imran Hossen, Xiali Hei

CAPTCHAs are designed to prevent malicious bot programs from abusing websites. Most online service providers deploy audio CAPTCHAs as an alternative to text and image CAPTCHAs for…