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Machine Learning as a Service (MLaaS) has emerged as a widely adopted paradigm for providing access to deep neural network (DNN) models, enabling users to conveniently leverage these models through standardized APIs. However, such services…

Machine Learning · Computer Science 2026-02-25 Bolin Shen , Zhan Cheng , Neil Zhenqiang Gong , Fan Yao , Yushun Dong

We quantitatively investigate how machine learning models leak information about the individual data records on which they were trained. We focus on the basic membership inference attack: given a data record and black-box access to a model,…

Cryptography and Security · Computer Science 2017-04-04 Reza Shokri , Marco Stronati , Congzheng Song , Vitaly Shmatikov

Cloud vendors are increasingly offering machine learning services as part of their platform and services portfolios. These services enable the deployment of machine learning models on the cloud that are offered on a pay-per-query basis to…

Machine Learning · Computer Science 2017-11-21 Manish Kesarwani , Bhaskar Mukhoty , Vijay Arya , Sameep Mehta

Concept-based Models aim to improve interpretability by predicting high-level intermediate concepts, representing a promising approach for deployment in high-risk scenarios. However, they are known to suffer from information leakage,…

Machine Learning · Computer Science 2026-03-25 Enrico Parisini , Tapabrata Chakraborti , Chris Harbron , Ben D. MacArthur , Christopher R. S. Banerji

Model extraction aims to create a functionally similar copy from a machine learning as a service (MLaaS) API with minimal overhead, typically for illicit profit or as a precursor to further attacks, posing a significant threat to the MLaaS…

Cryptography and Security · Computer Science 2024-09-25 Hongyu Zhu , Wentao Hu , Sichu Liang , Fangqi Li , Wenwen Wang , Shilin Wang

The privacy of machine learning models has become a significant concern in many emerging Machine-Learning-as-a-Service applications, where prediction services based on well-trained models are offered to users via pay-per-query. The lack of…

Machine Learning · Computer Science 2022-06-24 Xun Xian , Mingyi Hong , Jie Ding

Despite machine learning models being widely used today, the relationship between a model and its training dataset is not well understood. We explore correlation inference attacks, whether and when a model leaks information about the…

Machine Learning · Computer Science 2024-07-19 Ana-Maria Creţu , Florent Guépin , Yves-Alexandre de Montjoye

Model extraction attacks pose significant security threats to deployed language models, potentially compromising intellectual property and user privacy. This survey provides a comprehensive taxonomy of LLM-specific extraction attacks and…

Cryptography and Security · Computer Science 2025-07-09 Kaixiang Zhao , Lincan Li , Kaize Ding , Neil Zhenqiang Gong , Yue Zhao , Yushun Dong

The use of personal data for training machine learning systems comes with a privacy threat and measuring the level of privacy of a model is one of the major challenges in machine learning today. Identifying training data based on a trained…

Machine Learning · Computer Science 2022-03-24 Ganesh Del Grosso , Hamid Jalalzai , Georg Pichler , Catuscia Palamidessi , Pablo Piantanida

Recently, machine learning (ML) has introduced advanced solutions to many domains. Since ML models provide business advantage to model owners, protecting intellectual property of ML models has emerged as an important consideration.…

Machine Learning · Computer Science 2020-05-28 Buse Gul Atli , Sebastian Szyller , Mika Juuti , Samuel Marchal , N. Asokan

Increasing use of machine learning (ML) technologies in privacy-sensitive domains such as medical diagnoses, lifestyle predictions, and business decisions highlights the need to better understand if these ML technologies are introducing…

Cryptography and Security · Computer Science 2022-01-25 Shagufta Mehnaz , Sayanton V. Dibbo , Ehsanul Kabir , Ninghui Li , Elisa Bertino

A significant number of machine learning models are vulnerable to model extraction attacks, which focus on stealing the models by using specially curated queries against the target model. This task is well accomplished by using part of the…

Cryptography and Security · Computer Science 2023-08-11 Harshit Shah , Aravindhan G , Pavan Kulkarni , Yuvaraj Govidarajulu , Manojkumar Parmar

Machine learning (ML) applications are increasingly prevalent. Protecting the confidentiality of ML models becomes paramount for two reasons: (a) a model can be a business advantage to its owner, and (b) an adversary may use a stolen model…

Cryptography and Security · Computer Science 2019-04-02 Mika Juuti , Sebastian Szyller , Samuel Marchal , N. Asokan

Model Extraction attacks exploit the target model's prediction API to create a surrogate model in order to steal or reconnoiter the functionality of the target model in the black-box setting. Several recent studies have shown that a…

Machine Learning · Computer Science 2022-02-25 Amir Mahdi Sadeghzadeh , Amir Mohammad Sobhanian , Faezeh Dehghan , Rasool Jalili

While advanced machine learning (ML) models are deployed in numerous real-world applications, previous works demonstrate these models have security and privacy vulnerabilities. Various empirical research has been done in this field.…

Cryptography and Security · Computer Science 2023-10-23 Boyang Zhang , Zheng Li , Ziqing Yang , Xinlei He , Michael Backes , Mario Fritz , Yang Zhang

In this paper we consider the setting where machine learning models are retrained on updated datasets in order to incorporate the most up-to-date information or reflect distribution shifts. We investigate whether one can infer information…

Machine Learning · Computer Science 2024-01-04 Tian Hui , Farhad Farokhi , Olga Ohrimenko

Recent works have demonstrated that it is possible to reconstruct training images and their labels from gradients of an image-classification model when its architecture is known. Unfortunately, there is still an incomplete theoretical…

Machine Learning · Computer Science 2022-10-25 Cangxiong Chen , Neill D. F. Campbell

Modeling and analyzing security of networked systems is an important problem in the emerging Science of Security and has been under active investigation. In this paper, we propose a new approach towards tackling the problem. Our approach is…

Cryptography and Security · Computer Science 2016-03-29 Gaofeng Da , Maochao Xu , Shouhuai Xu

Increasing use of ML technologies in privacy-sensitive domains such as medical diagnoses, lifestyle predictions, and business decisions highlights the need to better understand if these ML technologies are introducing leakages of sensitive…

Cryptography and Security · Computer Science 2020-12-08 Shagufta Mehnaz , Ninghui Li , Elisa Bertino

Explicit modelling of between-study heterogeneity is essential in network meta-analysis (NMA) to ensure valid inference and avoid overstating precision. While the additive random-effects (RE) model is the conventional approach, the…

Methodology · Statistics 2026-01-21 Xinlei Xu , Caitlin H Daly , Audrey Béliveau