Inference Attacks for X-Vector Speaker Anonymization

We revisit the privacy-utility tradeoff of x-vector speaker anonymization. Existing approaches quantify privacy through training complex speaker verification or identification models that are later used as attacks. Instead, we propose a novel inference attack for de-anonymization. Our attack is simple and ML-free yet we show experimentally that it outperforms existing approaches.

@article{bauer2025_2505.08978,
  title={ Inference Attacks for X-Vector Speaker Anonymization },
  author={ Luke Bauer and Wenxuan Bao and Malvika Jadhav and Vincent Bindschaedler },
  journal={arXiv preprint arXiv:2505.08978},
  year={ 2025 }
}