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Related papers: BadCLIP: Dual-Embedding Guided Backdoor Attack on …

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Backdoor attacks inject poisoning samples during training, with the goal of forcing a machine learning model to output an attacker-chosen class when presented a specific trigger at test time. Although backdoor attacks have been demonstrated…

Backdoor attacks pose a severe threat to deep learning, yet their impact on object detection remains poorly understood compared to image classification. While attacks have been proposed, we identify critical weaknesses in existing…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Kealan Dunnett , Reza Arablouei , Dimity Miller , Volkan Dedeoglu , Raja Jurdak

Backdoor attacks are dangerous and difficult to prevent in federated learning (FL), where training data is sourced from untrusted clients over long periods of time. These difficulties arise because: (a) defenders in FL do not have access to…

Machine Learning · Computer Science 2023-02-01 Shuaiqi Wang , Jonathan Hayase , Giulia Fanti , Sewoong Oh

With the help of conditioning mechanisms, the state-of-the-art diffusion models have achieved tremendous success in guided image generation, particularly in text-to-image synthesis. To gain a better understanding of the training process and…

Cryptography and Security · Computer Science 2023-10-24 Shengfang Zhai , Yinpeng Dong , Qingni Shen , Shi Pu , Yuejian Fang , Hang Su

Federated Learning (FL) allows multiple clients to collaboratively train a Neural Network (NN) model on their private data without revealing the data. Recently, several targeted poisoning attacks against FL have been introduced. These…

Cryptography and Security · Computer Science 2022-01-04 Phillip Rieger , Thien Duc Nguyen , Markus Miettinen , Ahmad-Reza Sadeghi

Despite the promise of Federated Learning (FL) for privacy-preserving model training on distributed data, it remains susceptible to backdoor attacks. These attacks manipulate models by embedding triggers (specific input patterns) in the…

Cryptography and Security · Computer Science 2024-07-12 Tuan Nguyen , Dung Thuy Nguyen , Khoa D Doan , Kok-Seng Wong

Recent knowledge graph (KG)-enhanced large language models (LLMs) move beyond purely textual knowledge augmentation by encoding retrieved subgraphs into continuous soft prompts via graph neural networks, introducing a graph-conditioned…

Artificial Intelligence · Computer Science 2026-05-13 Xiaoting Lyu , Yufei Han , Hangwei Qian , Haoyuan Yu , Xiang Ao , Bin Wang , Chenxu Wang , Xiaobo Ma , Wei Wang

Backdoor attacks have become an emerging threat to NLP systems. By providing poisoned training data, the adversary can embed a "backdoor" into the victim model, which allows input instances satisfying certain textual patterns (e.g.,…

Computation and Language · Computer Science 2023-05-30 Jun Yan , Vansh Gupta , Xiang Ren

While text-to-image diffusion models demonstrate impressive generation capabilities, they also exhibit vulnerability to backdoor attacks, which involve the manipulation of model outputs through malicious triggers. In this paper, for the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Zhongqi Wang , Jie Zhang , Shiguang Shan , Xilin Chen

Multi-modal large language models (MLLMs) extend large language models (LLMs) to process multi-modal information, enabling them to generate responses to image-text inputs. MLLMs have been incorporated into diverse multi-modal applications,…

Cryptography and Security · Computer Science 2025-03-21 Zenghui Yuan , Jiawen Shi , Pan Zhou , Neil Zhenqiang Gong , Lichao Sun

Deep learning models are vulnerable to backdoor attacks, where adversaries inject malicious functionality during training that activates on trigger inputs at inference time. Extensive research has focused on developing stealthy backdoor…

Cryptography and Security · Computer Science 2024-11-26 Jeongjin Shin , Sangdon Park

In a federated learning (FL) system, malicious participants can easily embed backdoors into the aggregated model while maintaining the model's performance on the main task. To this end, various defenses, including training stage…

Machine Learning · Computer Science 2023-05-30 Henger Li , Chen Wu , Sencun Zhu , Zizhan Zheng

Federated learning is a versatile framework for training models in decentralized environments. However, the trust placed in clients makes federated learning vulnerable to backdoor attacks launched by malicious participants. While many…

Cryptography and Security · Computer Science 2024-12-23 Borja Molina-Coronado

Federated learning is particularly susceptible to model poisoning and backdoor attacks because individual users have direct control over the training data and model updates. At the same time, the attack power of an individual user is…

Machine Learning · Computer Science 2022-10-18 Yuxin Wen , Jonas Geiping , Liam Fowl , Hossein Souri , Rama Chellappa , Micah Goldblum , Tom Goldstein

Existing studies in backdoor defense have predominantly focused on the training phase, overlooking the critical aspect of testing time defense. This gap becomes pronounced in the context of LLMs deployed as Web Services, which typically…

Computation and Language · Computer Science 2025-02-13 Wenjie Mo , Jiashu Xu , Qin Liu , Jiongxiao Wang , Jun Yan , Hadi Askari , Chaowei Xiao , Muhao Chen

In-context learning, a paradigm bridging the gap between pre-training and fine-tuning, has demonstrated high efficacy in several NLP tasks, especially in few-shot settings. Despite being widely applied, in-context learning is vulnerable to…

Computation and Language · Computer Science 2024-10-10 Shuai Zhao , Meihuizi Jia , Luu Anh Tuan , Fengjun Pan , Jinming Wen

Although Deep Neural Network (DNN) has led to unprecedented progress in various natural language processing (NLP) tasks, research shows that deep models are extremely vulnerable to backdoor attacks. The existing backdoor attacks mainly…

Cryptography and Security · Computer Science 2022-06-07 Xiaoyi Chen , Yinpeng Dong , Zeyu Sun , Shengfang Zhai , Qingni Shen , Zhonghai Wu

With heightened awareness of data privacy protection, Federated Learning (FL) has attracted widespread attention as a privacy-preserving distributed machine learning method. However, the distributed nature of federated learning also…

Cryptography and Security · Computer Science 2024-06-03 Xiaoyun Gan , Shanyu Gan , Taizhi Su , Peng Liu

Pretrained vision-language models (VLMs) like CLIP exhibit exceptional generalization across diverse downstream tasks. While recent studies reveal their vulnerability to adversarial attacks, research to date has primarily focused on…

Computer Vision and Pattern Recognition · Computer Science 2024-11-13 Wanqi Zhou , Shuanghao Bai , Danilo P. Mandic , Qibin Zhao , Badong Chen

Backdoor attacks (BA) are an emerging threat to deep neural network classifiers. A classifier being attacked will predict to the attacker's target class when a test sample from a source class is embedded with the backdoor pattern (BP).…

Cryptography and Security · Computer Science 2021-10-22 Zhen Xiang , David J. Miller , Siheng Chen , Xi Li , George Kesidis