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Related papers: Data Poisoning Attacks Against Multimodal Encoders

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Neural machine translation systems are known to be vulnerable to adversarial test inputs, however, as we show in this paper, these systems are also vulnerable to training attacks. Specifically, we propose a poisoning attack in which a…

Computation and Language · Computer Science 2021-07-13 Jun Wang , Chang Xu , Francisco Guzman , Ahmed El-Kishky , Yuqing Tang , Benjamin I. P. Rubinstein , Trevor Cohn

Making learners robust to adversarial perturbation at test time (i.e., evasion attacks) or training time (i.e., poisoning attacks) has emerged as a challenging task. It is known that for some natural settings, sublinear perturbations in the…

Machine Learning · Computer Science 2018-11-07 Saeed Mahloujifar , Mohammad Mahmoody

Hateful meme detection is a new multimodal task that has gained significant traction in academic and industry research communities. Recently, researchers have applied pre-trained visual-linguistic models to perform the multimodal…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Ming Shan Hee , Roy Ka-Wei Lee , Wen-Haw Chong

The advent of multimodal deep learning models, such as CLIP, has unlocked new frontiers in a wide range of applications, from image-text understanding to classification tasks. However, these models are not safe for adversarial attacks,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Md. Iqbal Hossain , Afia Sajeeda , Neeresh Kumar Perla , Ming Shao

Prediction of toxicity levels of chemical compounds is an important issue in Quantitative Structure-Activity Relationship (QSAR) modeling. Although toxicity prediction has achieved significant progress in recent times through deep learning,…

Machine Learning · Computer Science 2019-07-22 Abdul Karim , Jaspreet Singh , Avinash Mishra , Abdollah Dehzangi , M. A. Hakim Newton , Abdul Sattar

Large language models (LLMs) are increasingly deployed in settings where inducing a bias toward a certain topic can have significant consequences, and backdoor attacks can be used to produce such models. Prior work on backdoor attacks has…

Cryptography and Security · Computer Science 2026-02-17 Anudeep Das , Prach Chantasantitam , Gurjot Singh , Lipeng He , Mariia Ponomarenko , Florian Kerschbaum

Machine learning models are currently being deployed in a variety of real-world applications where model predictions are used to make decisions about healthcare, bank loans, and numerous other critical tasks. As the deployment of artificial…

Human-Computer Interaction · Computer Science 2019-10-07 Yuxin Ma , Tiankai Xie , Jundong Li , Ross Maciejewski

Although multimodal large language models (MLLMs) are increasingly deployed in real-world applications, their instruction-following behavior leaves them vulnerable to prompt injection attacks. Existing prompt injection methods predominantly…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Meiwen Ding , Song Xia , Chenqi Kong , Xudong Jiang

This paper investigates some of the risks introduced by "LLM poisoning," the intentional or unintentional introduction of malicious or biased data during model training. We demonstrate how a seemingly improved LLM, fine-tuned on a limited…

Cryptography and Security · Computer Science 2025-11-05 Patrick Karlsen , Even Eilertsen

Targeted data poisoning (TDP) aims to compromise the model's prediction on a specific (test) target by perturbing a small subset of training data. Existing work on TDP has focused on an overly ideal threat model in which the same image…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Zhizhen Chen , Zhengyu Zhao , Subrat Kishore Dutta , Chenhao Lin , Chao Shen , Xiao Zhang

It is well-known that deep learning models are vulnerable to small input perturbations. Such perturbed instances are called adversarial examples. Adversarial examples are commonly crafted to fool a model either at training time (poisoning)…

Machine Learning · Computer Science 2023-12-12 Ege Erdogan , Simon Geisler , Stephan Günnemann

As one kind of distributed machine learning technique, federated learning enables multiple clients to build a model across decentralized data collaboratively without explicitly aggregating the data. Due to its ability to break data silos,…

Cryptography and Security · Computer Science 2023-06-07 Junchuan Lianga , Rong Wang , Chaosheng Feng , Chin-Chen Chang

Machine learning has become an important component for many systems and applications including computer vision, spam filtering, malware and network intrusion detection, among others. Despite the capabilities of machine learning algorithms…

Machine Learning · Statistics 2018-02-14 Andrea Paudice , Luis Muñoz-González , Andras Gyorgy , Emil C. Lupu

Recent works show that text-to-image generative models are surprisingly vulnerable to a variety of poisoning attacks. Empirical results find that these models can be corrupted by altering associations between individual text prompts and…

Cryptography and Security · Computer Science 2024-09-20 Wenxin Ding , Cathy Y. Li , Shawn Shan , Ben Y. Zhao , Haitao Zheng

Multimodal pretrained models are vulnerable to backdoor attacks, yet most existing methods rely on visual or multimodal triggers, which are impractical since visually embedded triggers rarely occur in real-world data. To overcome this…

Cryptography and Security · Computer Science 2026-04-08 Yiyang Zhang , Chaojian Yu , Ziming Hong , Yuanjie Shao , Qinmu Peng , Tongliang Liu , Xinge You

The concept of learned index structures relies on the idea that the input-output functionality of a database index can be viewed as a prediction task and, thus, be implemented using a machine learning model instead of traditional…

Cryptography and Security · Computer Science 2022-03-01 Evgenios M. Kornaropoulos , Silei Ren , Roberto Tamassia

Targeted data poisoning attacks manipulate model predictions on specific test samples by injecting malicious data into training. Yet existing evaluations report average attack success rates over randomly selected targets, obscuring true…

Machine Learning · Computer Science 2026-05-25 William Xu , Chenyu Zhang , Yihan Wang , Matthew Y. R. Yang , Zuoqiu Liu , Gautam Kamath , Yaoliang Yu , Yiwei Lu

Recent studies reveal that integrating new modalities into Large Language Models (LLMs), such as Vision-Language Models (VLMs), creates a new attack surface that bypasses existing safety training techniques like Supervised Fine-tuning (SFT)…

Computation and Language · Computer Science 2025-10-15 Trishna Chakraborty , Erfan Shayegani , Zikui Cai , Nael Abu-Ghazaleh , M. Salman Asif , Yue Dong , Amit K. Roy-Chowdhury , Chengyu Song

Multimodal learning has shown significant superiority on various tasks by integrating multiple modalities. However, the interdependencies among modalities increase the susceptibility of multimodal models to adversarial attacks. Existing…

Machine Learning · Computer Science 2025-11-25 Junrui Zhang , Xinyu Zhao , Jie Peng , Chenjie Wang , Jianmin Ji , Tianlong Chen

A backdoor data poisoning attack is an adversarial attack wherein the attacker injects several watermarked, mislabeled training examples into a training set. The watermark does not impact the test-time performance of the model on typical…

Machine Learning · Computer Science 2021-11-05 Naren Sarayu Manoj , Avrim Blum