Artificial Intelligence #audio adversarial attack#discrete optimal transport
Discrete Optimal Transport Attack Poses New Threat to Voice Authentication Systems
New research on arXiv reveals a black-box audio adversarial attack using discrete optimal transport (DOT) that substantially increases error rates in automatic speaker verification (ASV) and anti-spoofing systems. The attack requires no model parameters or gradients and remains effective after fine-tuning, highlighting a new vulnerability for voice-based authentication.
Jun 17, 2026 1 source