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Pre-trained language models (PTLMs) have achieved great success and remarkable performance over a wide range of natural language processing (NLP) tasks. However, there are also growing concerns regarding the potential security issues in the…

Cryptography and Security · Computer Science 2022-02-15 Shangwei Guo , Chunlong Xie , Jiwei Li , Lingjuan Lyu , Tianwei Zhang

Property inference attacks reveal statistical properties about a training set but are difficult to distinguish from the primary purposes of statistical machine learning, which is to produce models that capture statistical properties about a…

Machine Learning · Computer Science 2021-09-28 Anshuman Suri , David Evans

Multi-stage threats like advanced persistent threats (APT) pose severe risks by stealing data and destroying infrastructure, with detection being challenging. APTs use novel attack vectors and evade signature-based detection by obfuscating…

Cryptography and Security · Computer Science 2024-06-21 Florian Nelles , Abbas Yazdinejad , Ali Dehghantanha , Reza M. Parizi , Gautam Srivastava

Reasoning has been a central topic in artificial intelligence from the beginning. The recent progress made on distributed representation and neural networks continues to improve the state-of-the-art performance of natural language…

Computation and Language · Computer Science 2024-10-14 Zi'ou Zheng , Xiaodan Zhu

Infrastructure networks such as the Internet backbone and power grids are essential for our everyday lives. With the prevalence of cyber-attacks on them, measuring their robustness has become an important issue. To date, many robustness…

Social and Information Networks · Computer Science 2021-07-05 Weisheng Si , Balume Mburano , Wei Xing Zheng , Tie Qiu

One of the most common and important destructive attacks on the victim system is Advanced Persistent Threat (APT)-attack. The APT attacker can achieve his hostile goals by obtaining information and gaining financial benefits regarding the…

Cryptography and Security · Computer Science 2021-01-19 Javad Hassannataj Joloudari , Mojtaba Haderbadi , Amir Mashmool , Mohammad GhasemiGol , Shahab S. , Amir Mosavi

Customer-service LLM agents increasingly make policy-bound decisions (refunds, rebooking, billing disputes), but the same ``helpful'' interaction style can be exploited: a small fraction of users can induce unauthorized concessions,…

Cryptography and Security · Computer Science 2026-01-01 Jingyu Zhang

Security issues are becoming increasingly significant with the rapid evolution of Non-fungible Tokens (NFTs). As NFTs are traded as digital assets, they have emerged as prime targets for cyber attackers. In the development of NFT smart…

Cryptography and Security · Computer Science 2026-01-16 Yuanzheng Niu , Xiaoqi Li , Wenkai Li

Considering the attacks against the power grid, one of the most effective approaches could be the attack to the transmission lines that leads to large cascading failures. Hence, the problem of locating the most critical or vulnerable…

Machine Learning · Computer Science 2024-05-21 Tianxin Zhou , Xiang Li , Haibing Lu

Large Language Models have excelled in remarkable reasoning capabilities with advanced prompting techniques, but they fall short on tasks that require exploration, strategic foresight, and sequential decision-making. Recent works propose to…

Computation and Language · Computer Science 2023-10-18 Zheyu Zhang , Zhuorui Ye , Yikang Shen , Chuang Gan

In the maintenance of complex systems, fault trees are used to locate problems and provide targeted solutions. To enable fault trees stored as images to be directly processed by large language models, which can assist in tracking and…

Artificial Intelligence · Computer Science 2026-03-25 Yuhui Wang , Zhixiong Yang , Ming Zhang , Shihan Dou , Zhiheng Xi , Enyu Zhou , Senjie Jin , Yujiong Shen , Dingwei Zhu , Yi Dong , Tao Gui , Qi Zhang , Xuanjing Huang

Attack trees are important for security, as they help to identify weaknesses and vulnerabilities in a system. Quantitative attack tree analysis supports a number security metrics, which formulate important KPIs such as the shortest, most…

Cryptography and Security · Computer Science 2024-01-24 Thi Kim Nhung Dang , Milan Lopuhaä-Zwakenberg , Mariëlle Stoelinga

The volume, variety, and velocity of change in vulnerabilities and exploits have made incident threat analysis challenging with human expertise and experience along. Tactics, Techniques, and Procedures (TTPs) are to describe how and why…

Artificial Intelligence · Computer Science 2023-08-24 Reza Fayyazi , Shanchieh Jay Yang

Automated fact-checking (AFC) systems are susceptible to adversarial attacks, enabling false claims to evade detection. Existing adversarial frameworks typically rely on injecting noise or altering semantics, yet no existing framework…

Computation and Language · Computer Science 2026-01-26 João A. Leite , Olesya Razuvayevskaya , Kalina Bontcheva , Carolina Scarton

This works considers challenges of building and usage a formal knowledge base (model), which unites the ATT&CK, CAPEC, CWE, CVE security enumerations. The proposed model can be used to learn relations between attack techniques, attack…

Cryptography and Security · Computer Science 2021-12-09 Andrei Brazhuk

Large language models (LLMs) employ safety mechanisms to prevent harmful outputs, yet these defenses primarily rely on semantic pattern matching. We show that encoding harmful prompts as coherent mathematical problems -- using formalisms…

Cryptography and Security · Computer Science 2026-05-06 Haoyu Zhang , Mohammad Zandsalimy , Shanu Sushmita

Federated learning (FL) is vulnerable to backdoor attacks, yet most existing methods are limited by fixed-pattern or single-target triggers, making them inflexible and easier to detect. We propose FLAT (FL Arbitrary-Target Attack), a novel…

Machine Learning · Computer Science 2025-08-07 Tuan Nguyen , Khoa D Doan , Kok-Seng Wong

The state-of-the-art for training on-device language models for mobile keyboard applications combines federated learning (FL) with differential privacy (DP) via the DP-Follow-the-Regularized-Leader (DP-FTRL) algorithm. Two variants of…

Machine Learning · Computer Science 2025-06-02 H. Brendan McMahan , Zheng Xu , Yanxiang Zhang

The aim of multi-agent reinforcement learning systems is to provide interacting agents with the ability to collaboratively learn and adapt to the behavior of other agents. In many real-world applications, the agents can only acquire a…

Artificial Intelligence · Computer Science 2019-10-10 Mingyang Geng , Kele Xu , Yiying Li , Shuqi Liu , Bo Ding , Huaimin Wang

Background: Fault tree analysis (FTA) is a well established method for qualitative as well as probabilistic reliability and safety analysis. As a Boolean model it does not support modelling of dynamic effects like sequence dependencies…

Computational Engineering, Finance, and Science · Computer Science 2015-05-19 Simon J. Schilling