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Data poisoning and backdoor attacks manipulate training data in order to cause models to fail during inference. A recent survey of industry practitioners found that data poisoning is the number one concern among threats ranging from model…

机器学习 · 计算机科学 2021-06-18 Avi Schwarzschild , Micah Goldblum , Arjun Gupta , John P Dickerson , Tom Goldstein

Backdoor attacks pose a significant threat to the integrity of text classification models used in natural language processing. While several dirty-label attacks that achieve high attack success rates (ASR) have been proposed, clean-label…

密码学与安全 · 计算机科学 2025-08-25 Onur Alp Kirci , M. Emre Gursoy

It has been shown that natural language processing (NLP) models are vulnerable to a kind of security threat called the Backdoor Attack, which utilizes a `backdoor trigger' paradigm to mislead the models. The most threatening backdoor attack…

计算与语言 · 计算机科学 2022-02-17 Lingfeng Shen , Haiyun Jiang , Lemao Liu , Shuming Shi

In this paper, we introduce the TrojAI software framework, an open source set of Python tools capable of generating triggered (poisoned) datasets and associated deep learning (DL) models with trojans at scale. We utilize the developed…

机器学习 · 计算机科学 2020-03-17 Kiran Karra , Chace Ashcraft , Neil Fendley

Machine learning models that use deep neural networks (DNNs) are vulnerable to backdoor attacks. An adversary carrying out a backdoor attack embeds a predefined perturbation called a trigger into a small subset of input samples and trains…

密码学与安全 · 计算机科学 2023-09-06 Arezoo Rajabi , Surudhi Asokraj , Fengqing Jiang , Luyao Niu , Bhaskar Ramasubramanian , Jim Ritcey , Radha Poovendran

There are increasing concerns about possible malicious modifications of integrated circuits (ICs) used in critical applications. Such attacks are often referred to as hardware Trojans. While many techniques focus on hardware Trojan…

硬件体系结构 · 计算机科学 2016-11-18 Tony F. Wu , Karthik Ganesan , Yunqing Alexander Hu , H. -S. Philip Wong , Simon Wong , Subhasish Mitra

Although deep neural networks (DNNs) have made rapid progress in recent years, they are vulnerable in adversarial environments. A malicious backdoor could be embedded in a model by poisoning the training dataset, whose intention is to make…

密码学与安全 · 计算机科学 2021-03-25 Yinpeng Dong , Xiao Yang , Zhijie Deng , Tianyu Pang , Zihao Xiao , Hang Su , Jun Zhu

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…

密码学与安全 · 计算机科学 2025-05-27 Zhou Feng , Jiahao Chen , Chunyi Zhou , Yuwen Pu , Qingming Li , Shouling Ji

Multimodal contrastive learning uses various data modalities to create high-quality features, but its reliance on extensive data sources on the Internet makes it vulnerable to backdoor attacks. These attacks insert malicious behaviors…

密码学与安全 · 计算机科学 2024-10-01 Kuanrong Liu , Siyuan Liang , Jiawei Liang , Pengwen Dai , Xiaochun Cao

The success of deep neural networks (DNNs) in real-world applications has benefited from abundant pre-trained models. However, the backdoored pre-trained models can pose a significant trojan threat to the deployment of downstream DNNs.…

密码学与安全 · 计算机科学 2024-07-18 Haibo Jin , Ruoxi Chen , Jinyin Chen , Haibin Zheng , Yang Zhang , Haohan Wang

Supervised fine-tuning has become the predominant method for adapting large pretrained models to downstream tasks. However, recent studies have revealed that these models are vulnerable to backdoor attacks, where even a small number of…

密码学与安全 · 计算机科学 2025-01-08 Peihai Jiang , Xixiang Lyu , Yige Li , Jing Ma

Self-Supervised Learning (SSL) is an effective paradigm for learning representations from unlabeled data, such as text, images, and videos. However, researchers have recently found that SSL is vulnerable to backdoor attacks. The attacker…

计算机视觉与模式识别 · 计算机科学 2024-11-04 Shengsheng Qian , Dizhan Xue , Yifei Wang , Shengjie Zhang , Huaiwen Zhang , Changsheng Xu

A security threat to deep neural networks (DNN) is backdoor contamination, in which an adversary poisons the training data of a target model to inject a Trojan so that images carrying a specific trigger will always be classified into a…

密码学与安全 · 计算机科学 2020-12-11 Di Tang , XiaoFeng Wang , Haixu Tang , Kehuan Zhang

Backdoor attacks against CNNs represent a new threat against deep learning systems, due to the possibility of corrupting the training set so to induce an incorrect behaviour at test time. To avoid that the trainer recognises the presence of…

密码学与安全 · 计算机科学 2019-03-01 Mauro Barni , Kassem Kallas , Benedetta Tondi

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…

机器学习 · 计算机科学 2025-02-11 Xinrui Wang , Chuanxing Geng , Wenhai Wan , Shao-yuan Li , Songcan Chen

Federated learning (FL) systems allow decentralized data-owning clients to jointly train a global model through uploading their locally trained updates to a centralized server. The property of decentralization enables adversaries to craft…

密码学与安全 · 计算机科学 2025-04-23 Yanbo Dai , Songze Li , Zihan Gan , Xueluan Gong

Deep learning-based methods for Time Series Classification (TSC) typically utilize deep networks to extract features, which are then processed through a combination of a Fully Connected (FC) layer and a SoftMax function. However, we have…

机器学习 · 计算机科学 2024-07-23 Fan Zhao , You Chen

Transfer learning (TL) has been widely used in electroencephalogram (EEG)-based brain-computer interfaces (BCIs) for reducing calibration efforts. However, backdoor attacks could be introduced through TL. In such attacks, an attacker embeds…

人机交互 · 计算机科学 2024-12-16 X. Jiang , L. Meng , S. Li , D. Wu

With the surge of Machine Learning (ML), An emerging amount of intelligent applications have been developed. Deep Neural Networks (DNNs) have demonstrated unprecedented performance across various fields such as medical diagnosis and…

密码学与安全 · 计算机科学 2022-04-12 Xinqiao Zhang , Huili Chen , Ke Huang , Farinaz Koushanfar

Machine learning algorithms, however effective, are known to be vulnerable in adversarial scenarios where a malicious user may inject manipulated instances. In this work we focus on evasion attacks, where a model is trained in a safe…

机器学习 · 计算机科学 2020-04-08 Stefano Calzavara , Claudio Lucchese , Federico Marcuzzi , Salvatore Orlando