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With the rapid development of blockchain technology, smart contract security has become a critical challenge. Existing smart contract vulnerability detection methods face three main issues: (1) Insufficient quality of datasets, lacking…

Cryptography and Security · Computer Science 2024-11-12 Lei Yu , Shiqi Chen , Hang Yuan , Peng Wang , Zhirong Huang , Jingyuan Zhang , Chenjie Shen , Fengjun Zhang , Li Yang , Jiajia Ma

Leveraging blockchain in Federated Learning (FL) emerges as a new paradigm for secure collaborative learning on Massive Edge Networks (MENs). As the scale of MENs increases, it becomes more difficult to implement and manage a blockchain…

Cryptography and Security · Computer Science 2025-03-07 Handi Chen , Rui Zhou , Yun-Hin Chan , Zhihan Jiang , Xianhao Chen , Edith C. H. Ngai

With the rise of sophisticated scam websites that exploit human psychological vulnerabilities, distinguishing between legitimate and scam websites has become increasingly challenging. This paper presents ScamFerret, an innovative agent…

Cryptography and Security · Computer Science 2025-02-17 Hiroki Nakano , Takashi Koide , Daiki Chiba

The integration of bots in Distributed Ledger Technologies (DLTs) fosters efficiency and automation. However, their use is also associated with predatory trading and market manipulation, and can pose threats to system integrity. It is…

Cryptography and Security · Computer Science 2025-01-03 Thomas Niedermayer , Pietro Saggese , Bernhard Haslhofer

Over the past decade, blockchain technology has attracted a huge attention from both industry and academia because it can be integrated with a large number of everyday applications of modern information and communication technologies (ICT).…

Cryptography and Security · Computer Science 2022-07-08 Muneeb Ul Hassan , Mubashir Husain Rehmani , Jinjun Chen

Blockchain technology and, in particular, blockchain-based transaction offers us information that has never been seen before in the financial world. In contrast to fiat currencies, transactions through virtual currencies like Bitcoin are…

Cryptography and Security · Computer Science 2021-04-21 Jinhuan Wang , Pengtao Chen , Shanqing Yu , Qi Xuan

While centralized servers pose a risk of being a single point of failure, decentralized approaches like blockchain offer a compelling solution by implementing a consensus mechanism among multiple entities. Merging distributed computing with…

Cryptography and Security · Computer Science 2024-03-29 Ji Liu , Chunlu Chen , Yu Li , Lin Sun , Yulun Song , Jingbo Zhou , Bo Jing , Dejing Dou

This paper introduces a Large Language Model (LLM)-based multi-agent framework designed to enhance anomaly detection within financial market data, tackling the longstanding challenge of manually verifying system-generated anomaly alerts.…

Risk Management · Quantitative Finance 2024-04-01 Taejin Park

Detecting deception in an increasingly digital world is both a critical and challenging task. In this study, we present a comprehensive evaluation of the automated deception detection capabilities of Large Language Models (LLMs) and Large…

Computation and Language · Computer Science 2025-06-12 Md Messal Monem Miah , Adrita Anika , Xi Shi , Ruihong Huang

Blockchain technology, lauded for its transparent and immutable nature, introduces a novel trust model. However, its decentralized structure raises concerns about potential inclusion of malicious or illegal content. This study focuses on…

Cryptography and Security · Computer Science 2025-12-22 Xingyu Feng

Anti-Money Laundering (AML) involves the identification of money laundering crimes in financial activities, such as cryptocurrency transactions. Recent studies advanced AML through the lens of graph-based machine learning, modeling the web…

Machine Learning · Computer Science 2024-10-14 Kiwhan Song , Mohamed Ali Dhraief , Muhua Xu , Locke Cai , Xuhao Chen , Arvind , Jie Chen

With the increase of the adoption of blockchain technology in providing decentralized solutions to various problems, smart contracts have become more popular to the point that billions of US Dollars are currently exchanged every day through…

Cryptography and Security · Computer Science 2023-01-24 Feng Mi , Chen Zhao , Zhuoyi Wang , Sadaf MD Halim , Xiaodi Li , Zhouxiang Wu , Latifur Khan , Bhavani Thuraisingham

The rapid advancement of large language models (LLMs) in recent years has revolutionized the AI landscape. However, the deployment model and usage of LLM services remain highly centralized, creating significant trust issues and costs for…

Cryptography and Security · Computer Science 2025-10-06 Hongbo Liu , Jiannong Cao , Bo Yang , Dongbin Bai , Yinfeng Cao , Xiaoming Shen , Yinan Zhang , Jinwen Liang , Shan Jiang , Mingjin Zhang

The recent decade witnessed a surge of increase in financial crimes across the public and private sectors, with an average cost of scams of $102m to financial institutions in 2022. Developing a mechanism for battling financial crimes is an…

Machine Learning · Computer Science 2023-04-20 Haobo Zhang , Junyuan Hong , Fan Dong , Steve Drew , Liangjie Xue , Jiayu Zhou

The rise of digital payments has accelerated the need for intelligent and scalable systems to detect fraud. This research presents an end-to-end, feature-rich machine learning framework for detecting credit card transaction anomalies and…

Financial crime is a large and growing problem, in some way touching almost every financial institution. Financial institutions are the front line in the war against financial crime and accordingly, must devote substantial human and…

Large language models (LLMs) have transformed the way computers understand and process human language, but using them effectively across different organizations remains still difficult. When organizations work together to improve LLMs, they…

Cryptography and Security · Computer Science 2024-12-19 Xuhan Zuo , Minghao Wang , Tianqing Zhu , Shui Yu , Wanlei Zhou

The trustless nature of permissionless blockchains renders overcollateralization a key safety component relied upon by decentralized finance (DeFi) protocols. Nonetheless, factors such as price volatility may undermine this mechanism. In…

General Finance · Quantitative Finance 2021-12-14 Daniel Perez , Sam M. Werner , Jiahua Xu , Benjamin Livshits

Blockchain is a decentralized, distributed ledger technology that ensures transparency, security, and immutability through cryptographic techniques. However, advancements in quantum computing threaten the security of classical cryptographic…

Cryptography and Security · Computer Science 2026-01-14 Nicholas J. C. Papadopoulos

Detecting anomalies in general ledger data is of utmost importance to ensure trustworthiness of financial records. Financial audits increasingly rely on machine learning (ML) algorithms to identify irregular or potentially fraudulent…

Machine Learning · Computer Science 2025-09-30 Alexander Bakumenko , Kateřina Hlaváčková-Schindler , Claudia Plant , Nina C. Hubig
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