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Backdoor attack intends to inject hidden backdoor into the deep neural networks (DNNs), such that the prediction of the infected model will be maliciously changed if the hidden backdoor is activated by the attacker-defined trigger, while it…

密码学与安全 · 计算机科学 2021-02-02 Yiming Li , Tongqing Zhai , Baoyuan Wu , Yong Jiang , Zhifeng Li , Shutao Xia

Graph Neural Networks (GNNs) have achieved promising results in various tasks such as node classification and graph classification. Recent studies find that GNNs are vulnerable to adversarial attacks. However, effective backdoor attacks on…

密码学与安全 · 计算机科学 2023-03-03 Enyan Dai , Minhua Lin , Xiang Zhang , Suhang Wang

Speaker identification (SI) determines a speaker's identity based on their spoken utterances. Previous work indicates that SI deep neural networks (DNNs) are vulnerable to backdoor attacks. Backdoor attacks involve embedding hidden triggers…

密码学与安全 · 计算机科学 2024-09-19 Coen Schoof , Stefanos Koffas , Mauro Conti , Stjepan Picek

Transfer learning provides an effective solution for feasibly and fast customize accurate \textit{Student} models, by transferring the learned knowledge of pre-trained \textit{Teacher} models over large datasets via fine-tuning. Many…

机器学习 · 计算机科学 2020-08-11 Shuo Wang , Surya Nepal , Carsten Rudolph , Marthie Grobler , Shangyu Chen , Tianle Chen

Recent researches demonstrate that Deep Neural Networks (DNN) models are vulnerable to backdoor attacks. The backdoored DNN model will behave maliciously when images containing backdoor triggers arrive. To date, existing backdoor attacks…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Mingfu Xue , Shifeng Ni , Yinghao Wu , Yushu Zhang , Jian Wang , Weiqiang Liu

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 (ML) has made tremendous progress during the past decade and is being adopted in various critical real-world applications. However, recent research has shown that ML models are vulnerable to multiple security and privacy…

密码学与安全 · 计算机科学 2022-03-07 Ahmed Salem , Rui Wen , Michael Backes , Shiqing Ma , Yang Zhang

Deep neural networks (DNNs) are vulnerable to backdoor attacks, where a backdoored model behaves normally with clean inputs but exhibits attacker-specified behaviors upon the inputs containing triggers. Most previous backdoor attacks mainly…

密码学与安全 · 计算机科学 2024-07-02 Linshan Hou , Zhongyun Hua , Yuhong Li , Yifeng Zheng , Leo Yu Zhang

Neural networks are often trained on proprietary datasets, making them attractive attack targets. We present a novel dataset extraction method leveraging an innovative training time backdoor attack, allowing a malicious federated learning…

密码学与安全 · 计算机科学 2025-12-19 Eden Luzon , Guy Amit , Roy Weiss , Torsten Kraub , Alexandra Dmitrienko , Yisroel Mirsky

In this paper we investigate the frequency sensitivity of Deep Neural Networks (DNNs) when presented with clean samples versus poisoned samples. Our analysis shows significant disparities in frequency sensitivity between these two types of…

密码学与安全 · 计算机科学 2023-03-24 Hasan Abed Al Kader Hammoud , Adel Bibi , Philip H. S. Torr , Bernard Ghanem

State-of-the-art deep neural networks (DNNs) have been proven to be vulnerable to adversarial manipulation and backdoor attacks. Backdoored models deviate from expected behavior on inputs with predefined triggers while retaining performance…

机器学习 · 计算机科学 2023-04-17 M. Caner Tol , Saad Islam , Andrew J. Adiletta , Berk Sunar , Ziming Zhang

Graph Neural Networks (GNNs) have shown remarkable performance in various tasks. However, recent works reveal that GNNs are vulnerable to backdoor attacks. Generally, backdoor attack poisons the graph by attaching backdoor triggers and the…

机器学习 · 计算机科学 2024-07-15 Zhiwei Zhang , Minhua Lin , Enyan Dai , Suhang Wang

Backdoor attack intends to inject hidden backdoor into the deep neural networks (DNNs), such that the prediction of infected models will be maliciously changed if the hidden backdoor is activated by the attacker-defined trigger. Currently,…

密码学与安全 · 计算机科学 2021-04-27 Yiming Li , Tongqing Zhai , Yong Jiang , Zhifeng Li , Shu-Tao Xia

Although deep neural networks (DNNs) have achieved a great success in various computer vision tasks, it is recently found that they are vulnerable to adversarial attacks. In this paper, we focus on the so-called \textit{backdoor attack},…

密码学与安全 · 计算机科学 2025-03-27 Hao Cheng , Kaidi Xu , Sijia Liu , Pin-Yu Chen , Pu Zhao , Xue Lin

This paper presents a Temporal Graph Neural Network (TGNN) framework for detection and localization of false data injection and ramp attacks on the system state in smart grids. Capturing the topological information of the system through the…

机器学习 · 计算机科学 2023-03-28 Seyed Hamed Haghshenas , Md Abul Hasnat , Mia Naeini

Deep neural networks (DNNs) have been widely used in many fields such as images processing, speech recognition; however, they are vulnerable to adversarial examples, and this is a security issue worthy of attention. Because the training…

密码学与安全 · 计算机科学 2019-08-08 Wenjian Luo , Chenwang Wu , Nan Zhou , Li Ni

Deep regression models are used in a wide variety of safety-critical applications, but are vulnerable to backdoor attacks. Although many defenses have been proposed for classification models, they are ineffective as they do not consider the…

机器学习 · 计算机科学 2024-11-08 Lingyu Du , Yupei Liu , Jinyuan Jia , Guohao Lan

Backdoor (trojan) attacks embed hidden, controllable behaviors into machine-learning models so that models behave normally on benign inputs but produce attacker-chosen outputs when a trigger is present. This survey reviews the rapidly…

密码学与安全 · 计算机科学 2025-09-10 Bilal Hussain Abbasi , Yanjun Zhang , Leo Zhang , Shang Gao

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…

密码学与安全 · 计算机科学 2022-08-16 Tong Wang , Yuan Yao , Feng Xu , Miao Xu , Shengwei An , Ting Wang

Deep neural networks (DNNs) are vulnerable to the \emph{backdoor attack}, which intends to embed hidden backdoors in DNNs by poisoning training data. The attacked model behaves normally on benign samples, whereas its prediction will be…

密码学与安全 · 计算机科学 2021-04-06 Yiming Li , Yanjie Li , Yalei Lv , Yong Jiang , Shu-Tao Xia