papersSEP 12 04:00 UTC
DF-CAPTCHA: challenge-response defense against real-time deepfake calls
A new arXiv paper introduces DF-CAPTCHA, a defense that asks callers to complete simple interactive tasks rather than relying on detecting synthesis artifacts. The approach aims to block live voice and video impersonation used in social engineering attacks. The proposal targets next-generation fraud where attackers spoof identity in real time.