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The Large Language Models (LLMs) are poised to offer efficient and intelligent services for future mobile communication networks, owing to their exceptional capabilities in language comprehension and generation. However, the extremely high…

Cryptography and Security · Computer Science 2023-09-07 Haomiao Yang , Kunlan Xiang , Mengyu Ge , Hongwei Li , Rongxing Lu , Shui Yu

Vision-Language Models (VLMs) are increasingly deployed in consumer applications where users seek recommendations about products, dining, and services. We introduce Hidden Ads, a new class of backdoor attacks that exploit this…

Computation and Language · Computer Science 2026-03-31 Duanyi Yao , Changyue Li , Zhicong Huang , Cheng Hong , Songze Li

Speech-driven large language models (LLMs) are increasingly accessed through speech interfaces, introducing new security risks via open acoustic channels. We present Sirens' Whisper (SWhisper), the first practical framework for covert…

Cryptography and Security · Computer Science 2026-03-17 Zijian Ling , Pingyi Hu , Xiuyong Gao , Xiaojing Ma , Man Zhou , Jun Feng , Songfeng Lu , Dongmei Zhang , Bin Benjamin Zhu

Deep neural networks (DNNs) have become the essential components for various commercialized machine learning services, such as Machine Learning as a Service (MLaaS). Recent studies show that machine learning services face severe privacy…

Computer Vision and Pattern Recognition · Computer Science 2022-01-27 Xiaoyong Yuan , Leah Ding , Lan Zhang , Xiaolin Li , Dapeng Wu

The widespread adoption of deep learning across various industries has introduced substantial challenges, particularly in terms of model explainability and security. The inherent complexity of deep learning models, while contributing to…

Cryptography and Security · Computer Science 2025-01-08 Kealan Dunnett , Reza Arablouei , Dimity Miller , Volkan Dedeoglu , Raja Jurdak

Backdoor attacks pose a persistent security risk to deep neural networks (DNNs) due to their stealth and durability. While recent research has explored leveraging model unlearning mechanisms to enhance backdoor concealment, existing attack…

Cryptography and Security · Computer Science 2025-10-16 Baogang Song , Dongdong Zhao , Jianwen Xiang , Qiben Xu , Zizhuo Yu

Deep learning models are vulnerable to various adversarial manipulations of their training data, parameters, and input sample. In particular, an adversary can modify the training data and model parameters to embed backdoors into the model,…

Machine Learning · Computer Science 2020-06-09 Te Juin Lester Tan , Reza Shokri

Deep neural networks are vulnerable to backdoor attacks, a type of adversarial attack that poisons the training data to manipulate the behavior of models trained on such data. Clean-label attacks are a more stealthy form of backdoor attacks…

Machine Learning · Computer Science 2024-07-17 Quang H. Nguyen , Nguyen Ngoc-Hieu , The-Anh Ta , Thanh Nguyen-Tang , Kok-Seng Wong , Hoang Thanh-Tung , Khoa D. Doan

Thanks to the popularisation of transformer-based models, speech recognition (SR) is gaining traction in various application fields, such as industrial and robotics environments populated with mission-critical devices. While…

Cryptography and Security · Computer Science 2024-09-20 Jonatan Bartolini , Todor Stoyanov , Alberto Giaretta

Over the past few years, providers such as Google, Microsoft, and Amazon have started to provide customers with access to software interfaces allowing them to easily embed machine learning tasks into their applications. Overall,…

Machine Learning · Computer Science 2020-05-20 Emiliano De Cristofaro

Deep neural networks have been demonstrated to be vulnerable to backdoor attacks. Specifically, by injecting a small number of maliciously constructed inputs into the training set, an adversary is able to plant a backdoor into the trained…

Machine Learning · Statistics 2019-12-10 Alexander Turner , Dimitris Tsipras , Aleksander Madry

As ML models become increasingly complex and integral to high-stakes domains such as finance and healthcare, they also become more susceptible to sophisticated adversarial attacks. We investigate the threat posed by undetectable backdoors,…

Machine Learning · Computer Science 2024-09-10 Alkis Kalavasis , Amin Karbasi , Argyris Oikonomou , Katerina Sotiraki , Grigoris Velegkas , Manolis Zampetakis

Backdoor attacks are a kind of emergent security threat in deep learning. After being injected with a backdoor, a deep neural model will behave normally on standard inputs but give adversary-specified predictions once the input contains…

Cryptography and Security · Computer Science 2022-10-20 Yangyi Chen , Fanchao Qi , Hongcheng Gao , Zhiyuan Liu , Maosong Sun

Recently, backdoor attack has become an increasing security threat to deep neural networks and drawn the attention of researchers. Backdoor attacks exploit vulnerabilities in third-party pretrained models during the training phase, enabling…

Cryptography and Security · Computer Science 2024-10-18 Lu Pang , Tao Sun , Weimin Lyu , Haibin Ling , Chao Chen

Interpretability is crucial to understand the inner workings of deep neural networks (DNNs) and many interpretation methods generate saliency maps that highlight parts of the input image that contribute the most to the prediction made by…

Cryptography and Security · Computer Science 2022-07-21 Shihong Fang , Anna Choromanska

Backdoor attacks pose an increasingly severe security threat to Deep Neural Networks (DNNs) during their development stage. In response, backdoor sample purification has emerged as a promising defense mechanism, aiming to eliminate backdoor…

Cryptography and Security · Computer Science 2024-05-21 Biao Yi , Sishuo Chen , Yiming Li , Tong Li , Baolei Zhang , Zheli Liu

The prompt-based learning paradigm, which bridges the gap between pre-training and fine-tuning, achieves state-of-the-art performance on several NLP tasks, particularly in few-shot settings. Despite being widely applied, prompt-based…

Computation and Language · Computer Science 2024-02-05 Shuai Zhao , Jinming Wen , Luu Anh Tuan , Junbo Zhao , Jie Fu

As a novel privacy-preserving paradigm aimed at reducing client computational costs and achieving data utility, split learning has garnered extensive attention and proliferated widespread applications across various fields, including smart…

Cryptography and Security · Computer Science 2024-10-22 Yuwen Pu , Zhuoyuan Ding , Jiahao Chen , Chunyi Zhou , Qingming Li , Chunqiang Hu , Shouling Ji

Deep neural networks (DNNs) are vulnerable to a class of attacks called "backdoor attacks", which create an association between a backdoor trigger and a target label the attacker is interested in exploiting. A backdoored DNN performs well…

Computer Vision and Pattern Recognition · Computer Science 2023-01-23 Hasan Abed Al Kader Hammoud , Shuming Liu , Mohammed Alkhrashi , Fahad AlBalawi , Bernard Ghanem

Multimodal Large Language Models (MLLMs) have achieved remarkable performance but remain vulnerable to jailbreak attacks that can induce harmful content and undermine their secure deployment. Previous studies have shown that introducing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Yilian Liu , Xiaojun Jia , Guoshun Nan , Jiuyang Lyu , Zhican Chen , Tao Guan , Shuyuan Luo , Zhongyi Zhai , Yang Liu