Longling Geng

Uncovering Strong Ties: A Study of Indirect Sybil Attack on Signed Social Network

The Fairness and Goodness Algorithm (FGA) is a widely used trust system in signed directed networks. However, attackers can manipulate trust scores on FGA by launching indirect Sybil attacks and exploiting strong ties. In this work, we propose a novel attack method vicinage-attack that formulates th…