Simple and Easy: Transfer Learning-Based Attacks to Text CAPTCHA. - Ping Wang 027; Haichang Gao; Ziyu Shi; Zhongni Yuan; Jiangping Hu (IEEE Access, 2020)

A Security Analysis of Captchas With Large Character Sets. - Ping Wang 027; Haichang Gao; Qingxun Rao; Sainan Luo; Zhongni Yuan; Ziyu Shi (IEEE Trans. Dependable Secur. Comput., 2021)

Improving the Security of Audio CAPTCHAs With Adversarial Examples. - Ping Wang 027; Haichang Gao; Xiaoyan Guo; Zhongni Yuan; Jiawei Nian (IEEE Trans. Dependable Secur. Comput., 2024)