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Federated Learning (FL) is a promising approach enabling multiple clients to train Deep Neural Networks (DNNs) collaboratively without sharing their local training data. However, FL is susceptible to backdoor (or targeted poisoning)…

密码学与安全 · 计算机科学 2023-08-23 Phillip Rieger , Torsten Krauß , Markus Miettinen , Alexandra Dmitrienko , Ahmad-Reza Sadeghi

Backdoor attack has emerged as a novel and concerning threat to AI security. These attacks involve the training of Deep Neural Network (DNN) on datasets that contain hidden trigger patterns. Although the poisoned model behaves normally on…

密码学与安全 · 计算机科学 2024-03-06 Huasong Zhou , Xiaowei Xu , Xiaodong Wang , Leon Bevan Bullock

Federated Learning (FL) is an emerging distributed machine learning paradigm enabling multiple clients to train a global model collaboratively without sharing their raw data. While FL enhances data privacy by design, it remains vulnerable…

Prompt-based tuning has emerged as a lightweight alternative to full fine-tuning in large vision-language models, enabling efficient adaptation via learned contextual prompts. This paradigm has recently been extended to federated learning…

机器学习 · 计算机科学 2025-09-09 Maozhen Zhang , Mengnan Zhao , Wei Wang , Bo Wang

Backdoor attacks are rapidly emerging threats to deep neural networks (DNNs). In the backdoor attack scenario, attackers usually implant the backdoor into the target model by manipulating the training dataset or training process. Then, the…

密码学与安全 · 计算机科学 2022-05-09 Nan Zhong , Zhenxing Qian , Xinpeng Zhang

Backdoor attacks present a significant threat to the robustness of Federated Learning (FL) due to their stealth and effectiveness. They maintain both the main task of the FL system and the backdoor task simultaneously, causing malicious…

机器学习 · 计算机科学 2024-11-05 Jiahao Xu , Zikai Zhang , Rui Hu

In federated learning, backdoor attacks embed triggers in the adversarial client's data to inject a backdoor into the model. In order to enhance the stealth, an attack method based on the dropout layer has been proposed, which can implant…

密码学与安全 · 计算机科学 2025-02-06 Weida Xu , Yang Xu , Sicong Zhang

Federated Transfer Learning (FTL) is the most general variation of Federated Learning. According to this distributed paradigm, a feature learning pre-step is commonly carried out by only one party, typically the server, on publicly shared…

机器学习 · 计算机科学 2024-05-01 Marco Arazzi , Stefanos Koffas , Antonino Nocera , Stjepan Picek

Federated learning (FL) is vulnerable to backdoor attacks, where adversaries alter model behavior on target classification labels by embedding triggers into data samples. While these attacks have received considerable attention in…

Most machine learning applications rely on centralized learning processes, opening up the risk of exposure of their training datasets. While federated learning (FL) mitigates to some extent these privacy risks, it relies on a trusted…

机器学习 · 计算机科学 2024-09-18 Georgios Syros , Gokberk Yar , Simona Boboila , Cristina Nita-Rotaru , Alina Oprea

Federated learning (FL), as a powerful learning paradigm, trains a shared model by aggregating model updates from distributed clients. However, the decoupling of model learning from local data makes FL highly vulnerable to backdoor attacks,…

密码学与安全 · 计算机科学 2025-03-07 Xiyue Zhang , Xiaoyong Xue , Xiaoning Du , Xiaofei Xie , Yang Liu , Meng Sun

Split Learning (SL) offers a framework for collaborative model training that respects data privacy by allowing participants to share the same dataset while maintaining distinct feature sets. However, SL is susceptible to backdoor attacks,…

密码学与安全 · 计算机科学 2026-01-27 Zhihao Dou , Dongfei Cui , Weida Wang , Anjun Gao , Yueyang Quan , Mengyao Ma , Viet Vo , Guangdong Bai , Zhuqing Liu , Minghong Fang

Existing approaches defend against backdoor attacks in federated learning (FL) mainly through a) mitigating the impact of infected models, or b) excluding infected models. The former negatively impacts model accuracy, while the latter…

机器学习 · 计算机科学 2024-05-21 Zhen Qin , Feiyi Chen , Chen Zhi , Xueqiang Yan , Shuiguang Deng

In this brief, we show that sequentially learning new information presented to a continual (incremental) learning model introduces new security risks: an intelligent adversary can introduce small amount of misinformation to the model during…

机器学习 · 计算机科学 2022-02-10 Muhammad Umer , Robi Polikar

Self-Supervised Learning (SSL) has shown great promise in learning representations from unlabeled data. The power of learning representations without the need for human annotations has made SSL a widely used technique in real-world…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Aryan Satpathy , Nilaksh Singh , Dhruva Rajwade , Somesh Kumar

Machine learning systems are vulnerable to backdoor attacks, where attackers manipulate model behavior through data tampering or architectural modifications. Traditional backdoor attacks involve injecting malicious samples with specific…

密码学与安全 · 计算机科学 2025-09-24 Yuan Ma , Jiankang Wei , Yilun Lyu , Kehao Chen , Jingtong Huang

Recent studies show that diffusion models (DMs) are vulnerable to backdoor attacks. Existing backdoor attacks impose unconcealed triggers (e.g., a gray box and eyeglasses) that contain evident patterns, rendering remarkable attack effects…

密码学与安全 · 计算机科学 2025-03-03 Yuning Han , Bingyin Zhao , Rui Chu , Feng Luo , Biplab Sikdar , Yingjie Lao

Recent efforts have been made to integrate self-supervised learning (SSL) with the framework of federated learning (FL). One unique challenge of federated self-supervised learning (FedSSL) is that the global objective of FedSSL usually does…

机器学习 · 计算机科学 2024-05-08 Shusen Jing , Anlan Yu , Shuai Zhang , Songyang Zhang

While convolutional neural networks (CNNs) have achieved success in computer vision tasks, it is vulnerable to backdoor attacks. Such attacks could mislead the victim model to make attacker-chosen prediction with a specific trigger pattern.…

计算机视觉与模式识别 · 计算机科学 2024-03-07 Yanqi Qiao , Dazhuang Liu , Rui Wang , Kaitai Liang

With the broad application of deep neural networks (DNNs), backdoor attacks have gradually attracted attention. Backdoor attacks are insidious, and poisoned models perform well on benign samples and are only triggered when given specific…

机器学习 · 计算机科学 2022-07-12 Chang Yue , Peizhuo Lv , Ruigang Liang , Kai Chen