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Author

Junhyeong Lee

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Jul 2026

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...

Junhyeong Lee, Hyun Kwon · 0 citations

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