Towards Unveiling Predictive Uncertainty Vulnerabilities in the Context of the Right to Be Forgotten

Fuente: arXiv
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Main Authors: Qian, Wei, Zhao, Chenxu, Li, Yangyi, Ye, Wenqian, Huai, Mengdi
Format: Preprint
Published: 2025
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author Qian, Wei
Zhao, Chenxu
Li, Yangyi
Ye, Wenqian
Huai, Mengdi
author_facet Qian, Wei
Zhao, Chenxu
Li, Yangyi
Ye, Wenqian
Huai, Mengdi
contents Currently, various uncertainty quantification methods have been proposed to provide certainty and probability estimates for deep learning models' label predictions. Meanwhile, with the growing demand for the right to be forgotten, machine unlearning has been extensively studied as a means to remove the impact of requested sensitive data from a pre-trained model without retraining the model from scratch. However, the vulnerabilities of such generated predictive uncertainties with regard to dedicated malicious unlearning attacks remain unexplored. To bridge this gap, for the first time, we propose a new class of malicious unlearning attacks against predictive uncertainties, where the adversary aims to cause the desired manipulations of specific predictive uncertainty results. We also design novel optimization frameworks for our attacks and conduct extensive experiments, including black-box scenarios. Notably, our extensive experiments show that our attacks are more effective in manipulating predictive uncertainties than traditional attacks that focus on label misclassifications, and existing defenses against conventional attacks are ineffective against our attacks.
format Preprint
id arxiv_https___arxiv_org_abs_2508_07458
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Towards Unveiling Predictive Uncertainty Vulnerabilities in the Context of the Right to Be Forgotten
Qian, Wei
Zhao, Chenxu
Li, Yangyi
Ye, Wenqian
Huai, Mengdi
Machine Learning
Currently, various uncertainty quantification methods have been proposed to provide certainty and probability estimates for deep learning models' label predictions. Meanwhile, with the growing demand for the right to be forgotten, machine unlearning has been extensively studied as a means to remove the impact of requested sensitive data from a pre-trained model without retraining the model from scratch. However, the vulnerabilities of such generated predictive uncertainties with regard to dedicated malicious unlearning attacks remain unexplored. To bridge this gap, for the first time, we propose a new class of malicious unlearning attacks against predictive uncertainties, where the adversary aims to cause the desired manipulations of specific predictive uncertainty results. We also design novel optimization frameworks for our attacks and conduct extensive experiments, including black-box scenarios. Notably, our extensive experiments show that our attacks are more effective in manipulating predictive uncertainties than traditional attacks that focus on label misclassifications, and existing defenses against conventional attacks are ineffective against our attacks.
title Towards Unveiling Predictive Uncertainty Vulnerabilities in the Context of the Right to Be Forgotten
topic Machine Learning
url https://arxiv.org/abs/2508.07458