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 security.
Decaptcha breaking 75% of ebay audio captchas
| Available Media | Publication (Pdf) Slides (pdf) |
| Conference | 3rd USENIX Workshop On Offensive Technologies (WOOT) - 2009 |
| Authors | Elie Bursztein , Steven Bethard |
| Citation |
