| 摘要 |
A method and system is provided for verifying human presence at a mobile device. The method includes receiving a request for verification. Further, the method includes sending a Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHA) challenge to the mobile device. Further, the method includes receiving a response to the CAPTCHA challenge. Finally, the method includes verifying the human presence by matching the response received to the CAPTCHA challenge sent. |
