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Breaking Audio CAPTCHAs
https://proceedings.neurips.cc/paper/2008/hash/12092a75caa75e4644fd2869f0b6c45a-Abstract.html
Breaking Audio CAPTCHAs. Part of Advances in Neural Information Processing Systems 21 (NIPS 2008) Bibtex Metadata Paper. Authors. Jennifer Tam, Jiri Simsa, Sean Hyde, Luis Ahn. Abstract. CAP T C H A s are computer-generated tests that humans can pass but current computer systems cannot. CAP T C H A s provide a method for automatically ...
Breaking audio CAPTCHAs | Proceedings of the 21st ...
https://dl.acm.org/doi/10.5555/2981780.2981983
Audio CAPTCHAs are generally composed of a set of words to be identified, layered on top of noise. We analyzed the security of current audio CAPTCHAs from popular Web sites by using AdaBoost, SVM, and k-NN, and achieved correct solutions for test samples with accuracy up to 71%. Such accuracy is enough to consider these CAPTCHAs broken.
Breaking audio CAPTCHAs - researchgate.net
https://www.researchgate.net/publication/221617978_Breaking_audio_CAPTCHAs
Current audio CAPTCHAs are also not secure, as au tomated programs have been able to successfully break more than 70% of audio CAPTCHAs [7,23, 36]. In order to im prove Internet's accessibility to ...
Breaking Audio CAPTCHAs - Carnegie Mellon University
https://www.cs.cmu.edu/~jdtam/Documents/Breaking_Audio_CAPTCHAs.pdf
Our approach to breaking the audio CAPTCHAs began by first splitting the audio files into segments of noise or words: for our experiments, the words were spoken letters or digits. We used manual transcriptions of the audio CAPTCHAs to get information regarding the location of each spoken word within the audio file.
Decaptcha breaking 75% of ebay audio captchas
https://elie.net/publication/decaptcha-breaking-75-percents-of-ebay-audio-captchas/
Bibtex. CAPTCHA tests aim at preventing attackers from performing automatic registration. In this paper we show that our prototype Decaptcha is able to successfully break 75% of eBay audio captchas. We compare its performance with the state of the art, readily available speech recognition system Sphinx and discuss the implications for eBay ...
CiteSeerX — Decaptcha: Breaking 75 % of eBay Audio …
https://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.160.2013
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): CAPTCHA tests aim at preventing attackers from performing automatic website registration. In this paper we show that our prototype Decaptcha is able to successfully break 75 % of eBay audio captchas. We compare its performance with the state of the art, readily available speech recognition system …
"Breaking Audio Captcha using Machine Learning/Deep ...
https://scholarworks.sjsu.edu/etd_projects/741/
Audio captcha is an accessible captcha meant for the visually disabled section of users such as color-blind, blind, near-sighted users. In this project, I analyzed the security of audio captchas from attacks that employ machine learning and deep learning models. Audio captchas of varying lengths (5, 7 and 10) and varying background noise (no ...
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