AIBullisharXiv – CS AI · 10h ago7/10
🧠
Trapping Attacker in Dilemma: Examining Internal Correlations and External Influences of Trigger for Defending GNN Backdoors
Researchers introduce PRAETORIAN, a novel defense mechanism against backdoor attacks on Graph Neural Networks that targets the fundamental requirements of effective attacks rather than surface-level indicators. The defense achieves a 99.45% reduction in attack success rates while maintaining minimal accuracy degradation, forcing adversaries into an unfavorable trade-off between attack effectiveness and detectability.