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Membership inference attacks aim to detect if a particular data point was used in training a model. We design a novel statistical test to perform robust membership inference attacks (RMIA) with low computational overhead. We achieve this by…

机器学习 · 统计学 2024-06-13 Sajjad Zarifzadeh , Philippe Liu , Reza Shokri

The pervasive deployment of deep learning models across critical domains has concurrently intensified privacy concerns due to their inherent propensity for data memorization. While Membership Inference Attacks (MIAs) serve as the gold…

机器学习 · 计算机科学 2026-04-16 Chihan Huang , Huaijin Wang , Shuai Wang

Membership inference attacks (MIAs) pose a critical privacy threat to fine-tuned large language models (LLMs), especially when models are adapted to domain-specific tasks using sensitive data. While prior black-box MIA techniques rely on…

密码学与安全 · 计算机科学 2025-12-23 Zhexi Lu , Hongliang Chi , Nathalie Baracaldo , Swanand Ravindra Kadhe , Yuseok Jeon , Lei Yu

Recent studies have shown that deep learning models are vulnerable to membership inference attacks (MIAs), which aim to infer whether a data record was used to train a target model or not. To analyze and study these vulnerabilities, various…

机器学习 · 统计学 2025-08-12 Chenxu Zhao , Wei Qian , Aobo Chen , Mengdi Huai

Federated learning (FL) has emerged as a promising privacy-aware paradigm that allows multiple clients to jointly train a model without sharing their private data. Recently, many studies have shown that FL is vulnerable to membership…

密码学与安全 · 计算机科学 2021-09-14 Hongsheng Hu , Zoran Salcic , Lichao Sun , Gillian Dobbie , Xuyun Zhang

This work investigates and evaluates multiple defense strategies against property inference attacks (PIAs), a privacy attack against machine learning models. Given a trained machine learning model, PIAs aim to extract statistical properties…

密码学与安全 · 计算机科学 2023-10-10 Joshua Stock , Jens Wettlaufer , Daniel Demmler , Hannes Federrath

Membership Inference Attacks exploit the vulnerabilities of exposing models trained on customer data to queries by an adversary. In a recently proposed implementation of an auditing tool for measuring privacy leakage from sensitive…

机器学习 · 计算机科学 2020-09-21 Abhinav Aggarwal , Zekun Xu , Oluwaseyi Feyisetan , Nathanael Teissier

Diffusion models have achieved tremendous success in image generation, but they also raise significant concerns regarding privacy and copyright issues. Membership Inference Attacks (MIAs) are designed to ascertain whether specific data was…

密码学与安全 · 计算机科学 2026-05-29 Puwei Lian , Yujun Cai , Songze Li , Bingkun Bao

Membership inference attacks (MIA) try to detect if data samples were used to train a neural network model, e.g. to detect copyright abuses. We show that models with higher dimensional input and output are more vulnerable to MIA, and…

机器学习 · 计算机科学 2021-08-19 Avital Shafran , Shmuel Peleg , Yedid Hoshen

Analyzing time-series data that contains personal information, particularly in the medical field, presents serious privacy concerns. Sensitive health data from patients is often used to train machine learning models for diagnostics and…

机器学习 · 计算机科学 2024-09-24 Noam Koren , Abigail Goldsteen , Guy Amit , Ariel Farkash

Federated Learning enables collaborative learning among clients via a coordinating server while avoiding direct data sharing, offering a perceived solution to preserve privacy. However, recent studies on Membership Inference Attacks (MIAs)…

密码学与安全 · 计算机科学 2025-08-04 Quan Nguyen , Minh N. Vu , Truc Nguyen , My T. Thai

The primary promise of decentralized learning is to allow users to engage in the training of machine learning models in a collaborative manner while keeping their data on their premises and without relying on any central entity. However,…

A number of recent works have demonstrated that API access to machine learning models leaks information about the dataset records used to train the models. Further, the work of \cite{somesh-overfit} shows that such membership inference…

密码学与安全 · 计算机科学 2019-10-15 Benjamin Zi Hao Zhao , Hassan Jameel Asghar , Raghav Bhaskar , Mohamed Ali Kaafar

The rapid advancement of Large Language Models (LLMs) has been driven by extensive datasets that may contain sensitive information, raising serious privacy concerns. One notable threat is the Membership Inference Attack (MIA), where…

密码学与安全 · 计算机科学 2025-12-17 Yihan Liao , Jacky Keung , Xiaoxue Ma , Jingyu Zhang , Yicheng Sun

The arms race between attacks and defenses for machine learning models has come to a forefront in recent years, in both the security community and the privacy community. However, one big limitation of previous research is that the security…

机器学习 · 统计学 2019-08-27 Liwei Song , Reza Shokri , Prateek Mittal

Machine learning models are prone to memorizing sensitive data, making them vulnerable to membership inference attacks in which an adversary aims to guess if an input sample was used to train the model. In this paper, we show that prior…

密码学与安全 · 计算机科学 2020-12-10 Liwei Song , Prateek Mittal

Learned recommender systems may inadvertently leak information about their training data, leading to privacy violations. We investigate privacy threats faced by recommender systems through the lens of membership inference. In such attacks,…

信息检索 · 计算机科学 2022-06-29 Zihan Wang , Na Huang , Fei Sun , Pengjie Ren , Zhumin Chen , Hengliang Luo , Maarten de Rijke , Zhaochun Ren

Membership Inference Attacks (MIAs) pose a critical privacy threat by enabling adversaries to determine whether a specific sample was included in a model's training dataset. Despite extensive research on MIAs, systematic comparisons between…

密码学与安全 · 计算机科学 2025-10-21 Owais Makroo , Siva Rajesh Kasa , Sumegh Roychowdhury , Karan Gupta , Nikhil Pattisapu , Santhosh Kasa , Sumit Negi

Model explanations improve the transparency of black-box machine learning (ML) models and their decisions; however, they can also be exploited to carry out privacy threats such as membership inference attacks (MIA). Existing works have only…

人工智能 · 计算机科学 2024-04-11 Kavita Kumari , Murtuza Jadliwala , Sumit Kumar Jha , Anindya Maiti

Large capacity machine learning (ML) models are prone to membership inference attacks (MIAs), which aim to infer whether the target sample is a member of the target model's training dataset. The serious privacy concerns due to the…

机器学习 · 计算机科学 2021-01-01 Virat Shejwalkar , Amir Houmansadr