Captcha Attack:Turning Captchas Against Humanity. (arXiv:2201.04014v1 [cs.CR])

Nowadays, people generate and share massive content on online platforms
(e.g., social networks, blogs). In 2021, the 1.9 billion daily active Facebook
users posted around 150 thousand photos every minute. Content moderators
constantly monitor these online platforms to prevent the spreading of
inappropriate content (e.g., hate speech, nudity images). Based on deep
learning (DL) advances, Automatic Content Moderators (ACM) help human
moderators handle high data volume. Despite their advantages, attackers can
exploit weaknesses of DL components (e.g., preprocessing, model) to …

attack captcha humanity