Hyun Kwon

Physically valid adversarial examples for 3D molecular prediction

Selective access control for medical image classification via friend-safe semantic-aware reversible adversarial examples

A unified framework called Friend-Safe Semantic-Aware Reversible Adversarial Examples (FS-SA-RAE), which integrates three complementary mechanisms: a friend-safe attack that employs dual-objective optimization to fool unauthorized (foe) models while preserving classification accuracy for authorized (friend) models, ena...

Crafting evasive phishing URLs: exploiting tokenizer vulnerabilities in transformer-based detection systems

This paper proposes Homoglyph-Guided Beam Search (HG-BS), an adversarial attack framework that generates evasive URLs preserving both visual appearance and functional validity under strict structural constraints, and establishes that current high-accuracy URL detectors rely on fragile token patterns rather than robust...