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Backdoor defenses have been studied to alleviate the threat of deep neural networks (DNNs) being backdoor attacked and thus maliciously altered. Since DNNs usually adopt some external training data from an untrusted third party, a robust…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Kuofeng Gao , Yang Bai , Jindong Gu , Yong Yang , Shu-Tao Xia

Data poisoning is a training-time attack that undermines the trustworthiness of learned models. In a targeted data poisoning attack, an adversary manipulates the training dataset to alter the classification of a targeted test point. Given…

Machine Learning · Computer Science 2025-11-18 Nakshatra Gupta , Sumanth Prabhu , Supratik Chakraborty , R Venkatesh

This paper investigates the critical issue of data poisoning attacks on AI models, a growing concern in the ever-evolving landscape of artificial intelligence and cybersecurity. As advanced technology systems become increasingly prevalent…

Cryptography and Security · Computer Science 2025-03-13 Halima I. Kure , Pradipta Sarkar , Ahmed B. Ndanusa , Augustine O. Nwajana

Given the volume of data needed to train modern machine learning models, external suppliers are increasingly used. However, incorporating external data poses data poisoning risks, wherein attackers manipulate their data to degrade model…

Cryptography and Security · Computer Science 2023-06-01 Yi Zeng , Minzhou Pan , Himanshu Jahagirdar , Ming Jin , Lingjuan Lyu , Ruoxi Jia

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…

Machine Learning · Computer Science 2025-02-25 Avinandan Bose , Laurent Lessard , Maryam Fazel , Krishnamurthy Dj Dvijotham

Federated Learning (FL) is an innovative approach to distributed machine learning. While FL offers significant privacy advantages, it also faces security challenges, particularly from poisoning attacks where adversaries deliberately…

Cryptography and Security · Computer Science 2024-09-23 Borja Molina-Coronado

Deep image classification models trained on vast amounts of web-scraped data are susceptible to data poisoning - a mechanism for backdooring models. A small number of poisoned samples seen during training can severely undermine a model's…

Cryptography and Security · Computer Science 2023-06-30 Nils Lukas , Florian Kerschbaum

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…

Machine Learning · Computer Science 2024-10-28 Fereshteh Razmi , Li Xiong

State-of-the-art machine learning models are vulnerable to data poisoning attacks whose purpose is to undermine the integrity of the model. However, the current literature on data poisoning attacks is mainly focused on ad hoc techniques…

Machine Learning · Computer Science 2021-02-12 Pooya Tavallali , Vahid Behzadan , Peyman Tavallali , Mukesh Singhal

Federated learning is vulnerable to various attacks, such as model poisoning and backdoor attacks, even if some existing defense strategies are used. To address this challenge, we propose an attack-adaptive aggregation strategy to defend…

Machine Learning · Computer Science 2021-08-09 Ching Pui Wan , Qifeng Chen

Manipulation of local training data and local updates, i.e., the poisoning attack, is the main threat arising from the collaborative nature of the federated learning (FL) paradigm. Most existing poisoning attacks aim to manipulate local…

Machine Learning · Computer Science 2025-05-30 Huazi Pan , Yanjun Zhang , Leo Yu Zhang , Scott Adams , Abbas Kouzani , Suiyang Khoo

Federated learning (FL) enables collaborative model training while preserving data privacy, but its decentralized nature exposes it to client-side data poisoning attacks (DPAs) and model poisoning attacks (MPAs) that degrade global model…

Cryptography and Security · Computer Science 2025-02-07 Heyi Zhang , Yule Liu , Xinlei He , Jun Wu , Tianshuo Cong , Xinyi Huang

Federated learning, as a distributed learning that conducts the training on the local devices without accessing to the training data, is vulnerable to Byzatine poisoning adversarial attacks. We argue that the federated learning model has to…

Machine Learning · Computer Science 2022-09-20 Nuria Rodríguez-Barroso , Eugenio Martínez-Cámara , M. Victoria Luzón , Francisco Herrera

Deep Neural Networks (DNN) are susceptible to backdoor attacks where malicious attackers manipulate the model's predictions via data poisoning. It is hence imperative to develop a strategy for training a clean model using a potentially…

Cryptography and Security · Computer Science 2023-12-21 Yiming Chen , Haiwei Wu , Jiantao Zhou

Backdoor attacks pose a significant threat to deep neural networks, particularly as recent advancements have led to increasingly subtle implantation, making the defense more challenging. Existing defense mechanisms typically rely on an…

Cryptography and Security · Computer Science 2024-09-19 Yukai Xu , Yujie Gu , Kouichi Sakurai

Recent research has highlighted the vulnerability of Deep Neural Networks (DNNs) against data poisoning attacks. These attacks aim to inject poisoning samples into the models' training dataset such that the trained models have inference…

Cryptography and Security · Computer Science 2025-06-03 Pengfei He , Han Xu , Jie Ren , Yingqian Cui , Hui Liu , Charu C. Aggarwal , Jiliang Tang

The distributed nature of local differential privacy (LDP) invites data poisoning attacks and poses unforeseen threats to the underlying LDP-supported applications. In this paper, we propose a comprehensive mitigation framework for popular…

Cryptography and Security · Computer Science 2025-06-18 Xiaolin Li , Ninghui Li , Boyang Wang , Wenhai Sun

Targeted data poisoning attacks manipulate model predictions on specific test samples by injecting malicious data into training. Yet existing evaluations report average attack success rates over randomly selected targets, obscuring true…

Machine Learning · Computer Science 2026-05-25 William Xu , Chenyu Zhang , Yihan Wang , Matthew Y. R. Yang , Zuoqiu Liu , Gautam Kamath , Yaoliang Yu , Yiwei Lu

We present a Federated Learning (FL) based solution for building a distributed classifier capable of detecting URLs containing GDPR-sensitive content related to categories such as health, sexual preference, political beliefs, etc. Although…

Cryptography and Security · Computer Science 2024-04-09 Tianyue Chu , Alvaro Garcia-Recuero , Costas Iordanou , Georgios Smaragdakis , Nikolaos Laoutaris

Data poisoning is a threat model in which a malicious actor tampers with training data to manipulate outcomes at inference time. A variety of defenses against this threat model have been proposed, but each suffers from at least one of the…

Machine Learning · Computer Science 2022-02-21 Jonas Geiping , Liam Fowl , Gowthami Somepalli , Micah Goldblum , Michael Moeller , Tom Goldstein