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Many adversarial attacks have been proposed to investigate the security issues of deep neural networks. In the black-box setting, current model stealing attacks train a substitute model to counterfeit the functionality of the target model.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Chen Ma , Li Chen , Jun-Hai Yong

Despite our best efforts, deep learning models remain highly vulnerable to even tiny adversarial perturbations applied to the inputs. The ability to extract information from solely the output of a machine learning model to craft adversarial…

Machine Learning · Computer Science 2023-03-27 Viet Quoc Vo , Ehsan Abbasnejad , Damith C. Ranasinghe

Machine unlearning algorithms, designed for selective removal of training data from models, have emerged as a promising approach to growing privacy concerns. In this work, we expose a critical yet underexplored vulnerability in the…

Cryptography and Security · Computer Science 2024-10-15 Yangsibo Huang , Daogao Liu , Lynn Chua , Badih Ghazi , Pritish Kamath , Ravi Kumar , Pasin Manurangsi , Milad Nasr , Amer Sinha , Chiyuan Zhang

Membership inference attacks allow a malicious entity to predict whether a sample is used during training of a victim model or not. State-of-the-art membership inference attacks have shown to achieve good accuracy which poses a great…

Machine Learning · Computer Science 2022-03-07 Shahbaz Rezaei , Xin Liu

We propose a new ensemble method for detecting and classifying adversarial examples generated by state-of-the-art attacks, including DeepFool and C&W. Our method works by training the members of an ensemble to have low classification error…

Machine Learning · Computer Science 2017-12-13 Alexander Bagnall , Razvan Bunescu , Gordon Stewart

Decision-based attacks construct adversarial examples against a machine learning (ML) model by making only hard-label queries. These attacks have mainly been applied directly to standalone neural networks. However, in practice, ML models…

Cryptography and Security · Computer Science 2023-07-24 Chawin Sitawarin , Florian Tramèr , Nicholas Carlini

Machine Learning (ML) and Deep Learning (DL) models have achieved state-of-the-art performance on multiple learning tasks, from vision to natural language modelling. With the growing adoption of ML and DL to many areas of computer science,…

Machine Learning · Computer Science 2019-06-11 Anshuman Chhabra , Abhishek Roy , Prasant Mohapatra

Machine learning (ML) models are proving to be vulnerable to a variety of attacks that allow the adversary to learn sensitive information, cause mispredictions, and more. While these attacks have been extensively studied, current research…

Cryptography and Security · Computer Science 2025-06-24 Yugeng Liu , Zheng Li , Hai Huang , Michael Backes , Yang Zhang

Deep Neural Networks (DNNs) are susceptible to model stealing attacks, which allows a data-limited adversary with no knowledge of the training dataset to clone the functionality of a target model, just by using black-box query access. Such…

Machine Learning · Statistics 2019-11-19 Sanjay Kariyappa , Moinuddin K Qureshi

Model extraction (ME) attacks represent one major threat to Machine-Learning-as-a-Service (MLaaS) platforms by ``stealing'' the functionality of confidential machine-learning models through querying black-box APIs. Over seven years have…

Machine Learning · Computer Science 2025-10-01 Jiacheng Liang , Ren Pang , Changjiang Li , Ting Wang

Recent advancements in diffusion models have enabled high-fidelity and photorealistic image generation across diverse applications. However, these models also present security and privacy risks, including copyright violations, sensitive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Jiacheng Shi , Yanfu Zhang , Huajie Shao , Ashley Gao

Inference attacks against Machine Learning (ML) models allow adversaries to learn sensitive information about training data, model parameters, etc. While researchers have studied, in depth, several kinds of attacks, they have done so in…

Cryptography and Security · Computer Science 2021-10-07 Yugeng Liu , Rui Wen , Xinlei He , Ahmed Salem , Zhikun Zhang , Michael Backes , Emiliano De Cristofaro , Mario Fritz , Yang Zhang

Model Inversion (MI), in which an adversary abuses access to a trained Machine Learning (ML) model attempting to infer sensitive information about its original training data, has attracted increasing research attention. During MI, the…

Machine Learning · Computer Science 2021-11-09 Qian Wang , Daniel Kurz

Energy theft causes large economic losses to utility companies around the world. In recent years, energy theft detection approaches based on machine learning (ML) techniques, especially neural networks, become popular in the research…

Signal Processing · Electrical Eng. & Systems 2020-09-01 Jiangnan Li , Yingyuan Yang , Jinyuan Stella Sun

In model extraction attacks, adversaries can steal a machine learning model exposed via a public API by repeatedly querying it and adjusting their own model based on obtained predictions. To prevent model stealing, existing defenses focus…

Cryptography and Security · Computer Science 2022-12-13 Adam Dziedzic , Muhammad Ahmad Kaleem , Yu Shen Lu , Nicolas Papernot

Machine learning models deployed as a service (MLaaS) are susceptible to model stealing attacks, where an adversary attempts to steal the model within a restricted access framework. While existing attacks demonstrate near-perfect…

Cryptography and Security · Computer Science 2022-04-26 Sunandini Sanyal , Sravanti Addepalli , R. Venkatesh Babu

Model stealing attacks have become a serious concern for deep learning models, where an attacker can steal a trained model by querying its black-box API. This can lead to intellectual property theft and other security and privacy risks. The…

Machine Learning · Computer Science 2023-09-12 Kacem Khaled , Mouna Dhaouadi , Felipe Gohring de Magalhães , Gabriela Nicolescu

Machine Learning (ML) systems are vulnerable to adversarial examples, particularly those from query-based black-box attacks. Despite various efforts to detect and prevent such attacks, ML systems are still at risk, demanding a more…

Machine Learning · Computer Science 2025-02-21 Yue Gao , Ilia Shumailov , Kassem Fawaz

With the growing popularity of artificial intelligence and machine learning, a wide spectrum of attacks against deep learning models have been proposed in the literature. Both the evasion attacks and the poisoning attacks attempt to utilize…

Cryptography and Security · Computer Science 2022-08-16 Zeyan Liu , Fengjun Li , Jingqiang Lin , Zhu Li , Bo Luo

Deep models have shown their vulnerability when processing adversarial samples. As for the black-box attack, without access to the architecture and weights of the attacked model, training a substitute model for adversarial attacks has…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Wenxuan Wang , Bangjie Yin , Taiping Yao , Li Zhang , Yanwei Fu , Shouhong Ding , Jilin Li , Feiyue Huang , Xiangyang Xue