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Large Audio-Language Models (LALMs) are increasingly deployed in real-world applications, yet their robustness against malicious audio injection attacks remains underexplored. This study systematically evaluates five leading LALMs across…

Computation and Language · Computer Science 2025-07-11 Guanyu Hou , Jiaming He , Yinhang Zhou , Ji Guo , Yitong Qiao , Rui Zhang , Wenbo Jiang

Over the past decade, there has been extensive research aimed at enhancing the robustness of neural networks, yet this problem remains vastly unsolved. Here, one major impediment has been the overestimation of the robustness of new defense…

Artificial Intelligence · Computer Science 2023-10-31 Leo Schwinn , David Dobre , Stephan Günnemann , Gauthier Gidel

As Speech Large Language Models (Speech LLMs) become increasingly integrated into voice-based applications, ensuring their robustness against manipulative or adversarial input becomes critical. Although prior work has studied adversarial…

Computation and Language · Computer Science 2026-05-25 Jinyang Wu , Bin Zhu , Xiandong Zou , Qiquan Zhang , Xu Fang , Pan Zhou

Machine Learning as a Service (MLaaS) has gained popularity due to advancements in Deep Neural Networks (DNNs). However, untrusted third-party platforms have raised concerns about AI security, particularly in backdoor attacks. Recent…

Cryptography and Security · Computer Science 2024-03-12 Zhe Ye , Diqun Yan , Li Dong , Kailai Shen

Backdoor attacks have become a major security threat for deploying machine learning models in security-critical applications. Existing research endeavors have proposed many defenses against backdoor attacks. Despite demonstrating certain…

Machine Learning · Computer Science 2023-11-28 Hengzhi Pei , Jinyuan Jia , Wenbo Guo , Bo Li , Dawn Song

Backdoor attacks, which maliciously control a well-trained model's outputs of the instances with specific triggers, are recently shown to be serious threats to the safety of reusing deep neural networks (DNNs). In this work, we propose an…

Computation and Language · Computer Science 2021-10-18 Wenkai Yang , Yankai Lin , Peng Li , Jie Zhou , Xu Sun

Recent work has shown the possibility of adversarial attacks on automatic speechrecognition (ASR) systems. However, in the vast majority of work in this area, theattacks have been executed only in the digital space, or have involved short…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-18 Joseph Szurley , J. Zico Kolter

Voice Processing Systems (VPSes), now widely deployed, have been made significantly more accurate through the application of recent advances in machine learning. However, adversarial machine learning has similarly advanced and has been used…

Cryptography and Security · Computer Science 2019-04-12 Hadi Abdullah , Washington Garcia , Christian Peeters , Patrick Traynor , Kevin R. B. Butler , Joseph Wilson

Most electronic devices utilize mechanical keyboards to receive inputs, including sensitive information such as authentication credentials, personal and private data, emails, plans, etc. However, these systems are susceptible to acoustic…

Cryptography and Security · Computer Science 2023-09-26 Alireza Taheritajar , Zahra Mahmoudpour Harris , Reza Rahaeimehr

Adversarial examples tremendously threaten the availability and integrity of machine learning-based systems. While the feasibility of such attacks has been observed first in the domain of image processing, recent research shows that speech…

Sound · Computer Science 2020-10-15 Tom Dörr , Karla Markert , Nicolas M. Müller , Konstantin Böttinger

It is critical to understand the privacy and robustness vulnerabilities of machine learning models, as their implementation expands in scope. In membership inference attacks, adversaries can determine whether a particular set of data was…

Cryptography and Security · Computer Science 2019-11-06 Michael Lomnitz , Nina Lopatina , Paul Gamble , Zigfried Hampel-Arias , Lucas Tindall , Felipe A. Mejia , Maria Alejandra Barrios

Defenses against security threats have been an interest of recent studies. Recent works have shown that it is not difficult to attack a natural language processing (NLP) model while defending against them is still a cat-mouse game. Backdoor…

Cryptography and Security · Computer Science 2022-05-31 Sangeet Sagar , Abhinav Bhatt , Abhijith Srinivas Bidaralli

As a widely deployed security scheme, text-based CAPTCHAs have become more and more difficult to resist machine learning-based attacks. So far, many researchers have conducted attacking research on text-based CAPTCHAs deployed by different…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Chunhui Li , Xingshu Chen , Haizhou Wang , Yu Zhang , Peiming Wang

Adversarial attacks have become a major threat for machine learning applications. There is a growing interest in studying these attacks in the audio domain, e.g, speech and speaker recognition; and find defenses against them. In this work,…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-12 Jesús Villalba , Sonal Joshi , Piotr Żelasko , Najim Dehak

Even though passwords are the most convenient means of authentication, they bring along themselves the threat of dictionary attacks. Dictionary attacks may be of two kinds: online and offline. While offline dictionary attacks are possible…

Cryptography and Security · Computer Science 2011-11-17 Vipul Goyal , Virendra Kumar , Mayank Singh , Ajith Abraham , Sugata Sanyal

Because state-of-the-art language models are expensive to train, most practitioners must make use of one of the few publicly available language models or language model APIs. This consolidation of trust increases the potency of backdoor…

Cryptography and Security · Computer Science 2023-07-28 Nikhil Kandpal , Matthew Jagielski , Florian Tramèr , Nicholas Carlini

This paper introduces a novel adversarial algorithm for attacking the state-of-the-art speech-to-text systems, namely DeepSpeech, Kaldi, and Lingvo. Our approach is based on developing an extension for the conventional distortion condition…

Sound · Computer Science 2021-03-16 Mohammad Esmaeilpour , Patrick Cardinal , Alessandro Lameiras Koerich

The paper applies reinforcement learning to novel Internet of Thing configurations. Our analysis of inaudible attacks on voice-activated devices confirms the alarming risk factor of 7.6 out of 10, underlining significant security…

Machine Learning · Computer Science 2023-07-26 Forrest McKee , David Noever

Retrieval-Augmented Generation (RAG) enhances Large Language Models by grounding their outputs in external documents. These systems, however, remain vulnerable to attacks on the retrieval corpus, such as prompt injection. RAG-based search…

Cryptography and Security · Computer Science 2026-02-17 Zeyu Shen , Basileal Imana , Tong Wu , Chong Xiang , Prateek Mittal , Aleksandra Korolova

Reliable evaluation of adversarial defenses is a challenging task, currently limited to an expert who manually crafts attacks that exploit the defense's inner workings or approaches based on an ensemble of fixed attacks, none of which may…

Machine Learning · Computer Science 2021-10-28 Chengyuan Yao , Pavol Bielik , Petar Tsankov , Martin Vechev