- CSB - MetaPress - Google - Bing - Yahoo
 | 2009 | |
|---|---|---|
| 4 |      | Jeff Yan, Ahmad Salah El Ahmad: CAPTCHA Security: A Case Study. IEEE Security & Privacy 7(4): 22-28 (2009) |
| 2008 | ||
| 3 | | Jeff Yan, Ahmad Salah El Ahmad: A low-cost attack on a Microsoft captcha. ACM Conference on Computer and Communications Security 2008: 543-554 |
| 2 | | Jeff Yan, Ahmad Salah El Ahmad: Usability of CAPTCHAs or usability issues in CAPTCHA design. SOUPS 2008: 44-52 |
| 2007 | ||
| 1 | | Jeff Yan, Ahmad Salah El Ahmad: Breaking Visual CAPTCHAs with Naive Pattern Recognition Algorithms. ACSAC 2007: 279-291 |
| 1 | Jeff Yan | [1] [2] [3] [4] |