Chenghui Shi, Shouling Ji, Qianjun Liu, Changchang Liu, Yuefeng Chen, Yuan He, Zhe Liu, Raheem Beyah, Ting Wang. Text Captcha Is Dead? A Large Scale Deployment and Empirical Study. In Jay Ligatti, Xinming Ou, Jonathan Katz, Giovanni Vigna, editors, CCS '20: 2020 ACM SIGSAC Conference on Computer and Communications Security, Virtual Event, USA, November 9-13, 2020. pages 1391-1406, ACM, 2020. [doi]
Abstract is missing.