17 citations · 18 across the 19 of their papers we have counts for
3 papers · 1 filter
Breaking reCAPTCHAv2
Andreas Plesner, Tobias Vontobel, Roger Wattenhofer
Our work examines the efficacy of employing advanced machine learning methods to solve captchas from Google's reCAPTCHAv2 system. We evaluate the effectiveness of automated systems…
Sybil Detection using Graph Neural Networks
Stuart Heeb, Andreas Plesner, Roger Wattenhofer
This paper presents SYBILGAT, a novel approach to Sybil detection in social networks using Graph Attention Networks (GATs). Traditional methods for Sybil detection primarily levera…
Seeing Through the Mask: Rethinking Adversarial Examples for CAPTCHAs
Yahya Jabary, Andreas Plesner, Turlan Kuzhagaliyev +1
Modern CAPTCHAs rely heavily on vision tasks that are supposedly hard for computers but easy for humans. However, advances in image recognition models pose a significant threat to…