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Data poisoning attacks are a potential threat to machine learning (ML) models, aiming to manipulate training datasets to disrupt their performance. Existing defenses are mostly designed to mitigate specific poisoning attacks or are aligned…

密码学与安全 · 计算机科学 2025-10-28 Anum Paracha , Junaid Arshad , Mohamed Ben Farah , Khalid Ismail

In this paper, we propose a new approach called MemLoss to improve the adversarial training of machine learning models. MemLoss leverages previously generated adversarial examples, referred to as 'Memory Adversarial Examples,' to enhance…

机器学习 · 计算机科学 2025-10-13 Soroush Mahdi , Maryam Amirmazlaghani , Saeed Saravani , Zahra Dehghanian

Model stealing attack is increasingly threatening the confidentiality of machine learning models deployed in the cloud. Recent studies reveal that adversaries can exploit data synthesis techniques to steal machine learning models even in…

密码学与安全 · 计算机科学 2025-03-25 Yunfei Yang , Xiaojun Chen , Yuexin Xuan , Zhendong Zhao

A powerful category of (invisible) data poisoning attacks modify a subset of training examples by small adversarial perturbations to change the prediction of certain test-time data. Existing defense mechanisms are not desirable to deploy in…

密码学与安全 · 计算机科学 2023-07-21 Tian Yu Liu , Yu Yang , Baharan Mirzasoleiman

We introduce camouflaged data poisoning attacks, a new attack vector that arises in the context of machine unlearning and other settings when model retraining may be induced. An adversary first adds a few carefully crafted points to the…

机器学习 · 计算机科学 2024-08-02 Jimmy Z. Di , Jack Douglas , Jayadev Acharya , Gautam Kamath , Ayush Sekhari

With the rise of third parties in the machine learning pipeline, the service provider in "Machine Learning as a Service" (MLaaS), or external data contributors in online learning, or the retraining of existing models, the need to ensure the…

密码学与安全 · 计算机科学 2021-05-20 Jialin Wen , Benjamin Zi Hao Zhao , Minhui Xue , Alina Oprea , Haifeng Qian

Unlearnable example attacks are data poisoning techniques that can be used to safeguard public data against unauthorized use for training deep learning models. These methods add stealthy perturbations to the original image, thereby making…

机器学习 · 计算机科学 2023-03-28 Tianrui Qin , Xitong Gao , Juanjuan Zhao , Kejiang Ye , Cheng-Zhong Xu

Deep learning models have consistently outperformed traditional machine learning models in various classification tasks, including image classification. As such, they have become increasingly prevalent in many real world applications…

密码学与安全 · 计算机科学 2018-08-31 Cong Liao , Haoti Zhong , Anna Squicciarini , Sencun Zhu , David Miller

In this paper we investigate the usage of adversarial perturbations for the purpose of privacy from human perception and model (machine) based detection. We employ adversarial perturbations for obfuscating certain variables in raw data…

Poisoning attacks are a category of adversarial machine learning threats in which an adversary attempts to subvert the outcome of the machine learning systems by injecting crafted data into training data set, thus increasing the machine…

机器学习 · 计算机科学 2024-10-28 Fereshteh Razmi , Li Xiong

Large language models (LLMs) are often fine-tuned on uncurated text datasets that adversaries can poison. Existing poisoning attacks primarily rely on fixed trigger phrases that defenses such as outlier detection, clean-data regularization,…

密码学与安全 · 计算机科学 2026-05-27 Zedian Shao , Charles Fleming , Teodora Baluta

This study provides a new understanding of the adversarial attack problem by examining the correlation between adversarial attack and visual attention change. In particular, we observed that: (1) images with incomplete attention regions are…

计算机视觉与模式识别 · 计算机科学 2023-01-02 Shangxi Wu , Jitao Sang , Kaiyuan Xu , Jiaming Zhang , Jian Yu

Adversarial classification is the task of performing robust classification in the presence of a strategic attacker. Originating from information hiding and multimedia forensics, adversarial classification recently received a lot of…

密码学与安全 · 计算机科学 2018-03-12 Pascal Schöttle , Alexander Schlögl , Cecilia Pasquini , Rainer Böhme

In the software engineering community, deep learning (DL) has recently been applied to many source code processing tasks. Due to the poor interpretability of DL models, their security vulnerabilities require scrutiny. Recently, researchers…

软件工程 · 计算机科学 2022-11-01 Jia Li , Zhuo Li , Huangzhao Zhang , Ge Li , Zhi Jin , Xing Hu , Xin Xia

Word-level adversarial attacks have shown success in NLP models, drastically decreasing the performance of transformer-based models in recent years. As a countermeasure, adversarial defense has been explored, but relatively few efforts have…

计算与语言 · 计算机科学 2022-03-04 KiYoon Yoo , Jangho Kim , Jiho Jang , Nojun Kwak

Federated Learning (FL) is a paradigm in Machine Learning (ML) that addresses data privacy, security, access rights and access to heterogeneous information issues by training a global model using distributed nodes. Despite its advantages,…

密码学与安全 · 计算机科学 2022-01-19 Ranwa Al Mallah , David Lopez , Godwin Badu Marfo , Bilal Farooq

While state-of-the-art diffusion models (DMs) excel in image generation, concerns regarding their security persist. Earlier research highlighted DMs' vulnerability to data poisoning attacks, but these studies placed stricter requirements…

机器学习 · 计算机科学 2024-06-18 Zhuoshi Pan , Yuguang Yao , Gaowen Liu , Bingquan Shen , H. Vicky Zhao , Ramana Rao Kompella , Sijia Liu

The rise of foundation models fine-tuned on human feedback from potentially untrusted users has increased the risk of adversarial data poisoning, necessitating the study of robustness of learning algorithms against such attacks. Existing…

机器学习 · 计算机科学 2025-02-25 Avinandan Bose , Laurent Lessard , Maryam Fazel , Krishnamurthy Dj Dvijotham

Many state-of-the-art ML models have outperformed humans in various tasks such as image classification. With such outstanding performance, ML models are widely used today. However, the existence of adversarial attacks and data poisoning…

机器学习 · 计算机科学 2021-12-07 Jing Lin , Long Dang , Mohamed Rahouti , Kaiqi Xiong

Predictions of certifiably robust classifiers remain constant in a neighborhood of a point, making them resilient to test-time attacks with a guarantee. In this work, we present a previously unrecognized threat to robust machine learning…

机器学习 · 计算机科学 2021-03-31 Akshay Mehra , Bhavya Kailkhura , Pin-Yu Chen , Jihun Hamm