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Dazed & Confused: A Large-Scale Real-World User Study of reCAPTCHAv2. (arXiv:2311.10911v2 [cs.CR] UPDATED)
cs.CR updates on arXiv.org arxiv.org
Since about 2003, captchas have been widely used as a barrier against bots,
while simultaneously annoying great multitudes of users worldwide. As their use
grew, techniques to defeat or bypass captchas kept improving, while captchas
themselves evolved in terms of sophistication and diversity, becoming
increasingly difficult to solve for both bots and humans. Given this
long-standing and still-ongoing arms race, it is important to investigate
usability, solving performance, and user perceptions of modern captchas. In
this work, we do so …
bots bypass captchas diversity great large multitudes real scale study techniques terms world