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Recent works have demonstrated that deep learning models are vulnerable to backdoor poisoning attacks, where these attacks instill spurious correlations to external trigger patterns or objects (e.g., stickers, sunglasses, etc.). We find…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Tong Wu , Tianhao Wang , Vikash Sehwag , Saeed Mahloujifar , Prateek Mittal

Recent studies have verified that semi-supervised learning (SSL) is vulnerable to data poisoning backdoor attacks. Even a tiny fraction of contaminated training data is sufficient for adversaries to manipulate up to 90\% of the test outputs…

Machine Learning · Computer Science 2025-02-11 Xinrui Wang , Chuanxing Geng , Wenhai Wan , Shao-yuan Li , Songcan Chen

Backdoor attacks have been shown to be a serious security threat against deep learning models, and detecting whether a given model has been backdoored becomes a crucial task. Existing defenses are mainly built upon the observation that the…

Cryptography and Security · Computer Science 2022-08-16 Tong Wang , Yuan Yao , Feng Xu , Miao Xu , Shengwei An , Ting Wang

Backdoor attacks, in which a model behaves maliciously when given an attacker-specified trigger, pose a major security risk for practitioners who depend on publicly released language models. As a countermeasure, backdoor detection methods…

Computation and Language · Computer Science 2025-09-23 Jun Yan , Wenjie Jacky Mo , Xiang Ren , Robin Jia

In a backdoor attack, an adversary inserts maliciously constructed backdoor examples into a training set to make the resulting model vulnerable to manipulation. Defending against such attacks typically involves viewing these inserted…

Cryptography and Security · Computer Science 2023-07-20 Alaa Khaddaj , Guillaume Leclerc , Aleksandar Makelov , Kristian Georgiev , Hadi Salman , Andrew Ilyas , Aleksander Madry

Deep neural networks have significantly improved the performance of face forgery detection models in discriminating Artificial Intelligent Generated Content (AIGC). However, their security is significantly threatened by the injection of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Xiaoxuan Han , Songlin Yang , Wei Wang , Ziwen He , Jing Dong

Backdoor attacks embed malicious triggers into training data, enabling attackers to manipulate neural network behavior during inference while maintaining high accuracy on benign inputs. However, existing backdoor attacks face limitations…

Cryptography and Security · Computer Science 2025-05-27 Zhou Feng , Jiahao Chen , Chunyi Zhou , Yuwen Pu , Qingming Li , Shouling Ji

Backdoor attacks aim to surreptitiously insert malicious triggers into DNN models, granting unauthorized control during testing scenarios. Existing methods lack robustness against defense strategies and predominantly focus on enhancing…

Cryptography and Security · Computer Science 2024-12-03 Pengfei He , Yue Xing , Han Xu , Jie Ren , Yingqian Cui , Shenglai Zeng , Jiliang Tang , Makoto Yamada , Mohammad Sabokrou

Model poisoning attacks on federated learning (FL) intrude in the entire system via compromising an edge model, resulting in malfunctioning of machine learning models. Such compromised models are tampered with to perform adversary-desired…

Machine Learning · Computer Science 2022-05-11 Yuwei Sun , Hideya Ochiai , Jun Sakuma

Dataset Condensation (DC) is a data-efficient learning paradigm that synthesizes small yet informative datasets, enabling models to match the performance of full-data training. However, recent work exposes a critical vulnerability of DC to…

Machine Learning · Computer Science 2026-03-31 He Yang , Dongyi Lv , Song Ma , Wei Xi , Zhi Wang , Hanlin Gu , Yajie Wang

Deep neural networks have been demonstrated to be vulnerable to backdoor attacks. Specifically, by injecting a small number of maliciously constructed inputs into the training set, an adversary is able to plant a backdoor into the trained…

Machine Learning · Statistics 2019-12-10 Alexander Turner , Dimitris Tsipras , Aleksander Madry

Backdoor attacks pose a new threat to NLP models. A standard strategy to construct poisoned data in backdoor attacks is to insert triggers (e.g., rare words) into selected sentences and alter the original label to a target label. This…

Computation and Language · Computer Science 2022-04-28 Leilei Gan , Jiwei Li , Tianwei Zhang , Xiaoya Li , Yuxian Meng , Fei Wu , Yi Yang , Shangwei Guo , Chun Fan

Federated Learning (FL) exposes vulnerabilities to targeted poisoning attacks that aim to cause misclassification specifically from the source class to the target class. However, using well-established defense frameworks, the poisoning…

Cryptography and Security · Computer Science 2025-03-25 Shihua Sun , Shridatt Sugrim , Angelos Stavrou , Haining Wang

Modern NLP models are often trained over large untrusted datasets, raising the potential for a malicious adversary to compromise model behaviour. For instance, backdoors can be implanted through crafting training instances with a specific…

Computation and Language · Computer Science 2023-10-23 Xuanli He , Qiongkai Xu , Jun Wang , Benjamin Rubinstein , Trevor Cohn

Deep neural networks (DNNs) have made tremendous progress in the past ten years and have been applied in various critical applications. However, recent studies have shown that deep neural networks are vulnerable to backdoor attacks. By…

Cryptography and Security · Computer Science 2023-05-19 Xinrui Liu , Yajie Wang , Yu-an Tan , Kefan Qiu , Yuanzhang Li

Backdoor attacks are an insidious security threat against machine learning models. Adversaries can manipulate the predictions of compromised models by inserting triggers into the training phase. Various backdoor attacks have been devised…

Computation and Language · Computer Science 2023-05-29 Xuanli He , Jun Wang , Benjamin Rubinstein , Trevor Cohn

Federated Learning (FL) enables numerous participants to train deep learning models collaboratively without exposing their personal, potentially sensitive data, making it a promising solution for data privacy in collaborative training. The…

Cryptography and Security · Computer Science 2022-06-02 Manaar Alam , Esha Sarkar , Michail Maniatakos

Extensive literature on backdoor poison attacks has studied attacks and defenses for backdoors using "digital trigger patterns." In contrast, "physical backdoors" use physical objects as triggers, have only recently been identified, and are…

Computer Vision and Pattern Recognition · Computer Science 2022-06-23 Emily Wenger , Roma Bhattacharjee , Arjun Nitin Bhagoji , Josephine Passananti , Emilio Andere , Haitao Zheng , Ben Y. Zhao

Federated learning has seen increased adoption in recent years in response to the growing regulatory demand for data privacy. However, the opaque local training process of federated learning also sparks rising concerns about model…

Artificial Intelligence · Computer Science 2023-08-24 Yuxi Mi , Yiheng Sun , Jihong Guan , Shuigeng Zhou

Deep Neural Networks (DNNs) are shown to be vulnerable to backdoor poisoning attacks, with most research focusing on digital triggers -- artificial patterns added to test-time inputs to induce targeted misclassification. Physical triggers,…

Cryptography and Security · Computer Science 2025-08-18 Thinh Dao , Khoa D Doan , Kok-Seng Wong
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