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Decentralized Finance (DeFi) is emerging as a peer-to-peer financial ecosystem, enabling participants to trade products on a permissionless blockchain. Built on blockchain and smart contracts, the DeFi ecosystem has experienced explosive…

Cryptography and Security · Computer Science 2023-09-07 Peng Qian , Rui Cao , Zhenguang Liu , Wenqing Li , Ming Li , Lun Zhang , Yufeng Xu , Jianhai Chen , Qinming He

Smart contracts in Decentralized Finance (DeFi) platforms are attractive targets for attacks as their vulnerabilities can lead to massive amounts of financial losses. Flash loan attacks, in particular, pose a major threat to DeFi protocols…

Cryptography and Security · Computer Science 2025-03-05 Abdulrahman Alhaidari , Balaji Palanisamy , Prashant Krishnamurthy

Decentralized finance (DeFi) protocols are crypto projects developed on the blockchain to manage digital assets. Attacks on DeFi have been frequent and have resulted in losses exceeding $80 billion. Current tools detect and locate possible…

Cryptography and Security · Computer Science 2025-11-04 Xiaoqi Li , Wenkai Li , Zhiquan Liu , Yuqing Zhang , Yingjie Mao

Decentralized finance (DeFi) protocols are crypto projects developed on the blockchain to manage digital assets. Attacks on DeFi have been frequent and have resulted in losses exceeding \$77 billion. However, detection methods for malicious…

Cryptography and Security · Computer Science 2024-05-21 Wenkai Li , Xiaoqi Li , Yuqing Zhang , Zongwei Li

Price manipulation attack is one of the notorious threats in decentralized finance (DeFi) applications, which allows attackers to exchange tokens at an extensively deviated price from the market. Existing efforts usually rely on reactive…

Cryptography and Security · Computer Science 2025-02-07 Bosi Zhang , Ningyu He , Xiaohui Hu , Kai Ma , Haoyu Wang

The growth of the decentralized finance (DeFi) ecosystem built on blockchain technology and smart contracts has led to an increased demand for secure and reliable smart contract development. However, attacks targeting smart contracts are…

Within just four years, the blockchain-based Decentralized Finance (DeFi) ecosystem has accumulated a peak total value locked (TVL) of more than 253 billion USD. This surge in DeFi's popularity has, unfortunately, been accompanied by many…

Cryptography and Security · Computer Science 2023-04-11 Liyi Zhou , Xihan Xiong , Jens Ernstberger , Stefanos Chaliasos , Zhipeng Wang , Ye Wang , Kaihua Qin , Roger Wattenhofer , Dawn Song , Arthur Gervais

The rise of Decentralized Finance (DeFi) has brought novel financial opportunities but also exposed serious security vulnerabilities, with flash loans frequently exploited for price manipulation attacks. These attacks, leveraging the atomic…

Cryptography and Security · Computer Science 2025-02-25 Ka Wai Wu

Decentralized Finance (DeFi) is a system of financial products and services built and delivered through smart contracts on various blockchains. In the past year, DeFi has gained popularity and market capitalization. However, it has also…

Machine Learning · Computer Science 2023-05-29 Arianna Trozze , Bennett Kleinberg , Toby Davies

As blockchain ecosystems grow, financially motivated attackers increasingly exploit decentralized finance (DeFi) protocols, causing frequent and severe losses. Unlike conventional cyberattacks, DeFi exploits propagate rapidly due to the…

Cryptography and Security · Computer Science 2026-04-30 Bowen Cai , Weiheng Bai , Youshui Lu , Haoran Xu , Yuannan Yang , Yajin Zhou , Kangjie Lu

Since the inception of permissionless blockchains with Bitcoin in 2008, it became apparent that their most well-suited use case is related to making the financial system and its advantages available to everyone seamlessly without depending…

General Finance · Quantitative Finance 2023-06-16 Georgios Palaiokrassas , Sandro Scherrers , Iason Ofeidis , Leandros Tassiulas

Front-running attacks have been a major concern on the blockchain. Attackers launch front-running attacks by inserting additional transactions before upcoming victim transactions to manipulate victim transaction executions and make profits.…

Software Engineering · Computer Science 2023-05-04 Wuqi Zhang , Lili Wei , Shing-Chi Cheung , Yepang Liu , Shuqing Li , Lu Liu , Michael R. Lyu

The meteoric rise of Decentralized Finance (DeFi) has been accompanied by a plethora of frequent and often financially devastating attacks on its protocols There have been over 70 exploits of DeFi protocols, with the total of lost funds…

Cryptography and Security · Computer Science 2022-02-01 Daniel Perez , Lewis Gudgeon

The rapid growth of Decentralized Finance (DeFi) boosts the Ethereum ecosystem. At the same time, attacks towards DeFi applications (apps) are increasing. However, to the best of our knowledge, existing smart contract vulnerability…

Cryptography and Security · Computer Science 2021-05-03 Siwei Wu , Dabao Wang , Jianting He , Yajin Zhou , Lei Wu , Xingliang Yuan , Qinming He , Kui Ren

Adversarial smart contracts, mostly on EVM-compatible chains like Ethereum and BSC, are deployed as EVM bytecode to exploit vulnerable smart contracts for financial gain. Detecting such malicious contracts at the time of deployment is an…

Cryptography and Security · Computer Science 2025-11-17 Yating Liu , Xing Su , Hao Wu , Sijin Li , Yuxi Cheng , Fengyuan Xu , Sheng Zhong

Decentralized Finance (DeFi) smart contracts manage billions of dollars, making them a prime target for exploits. Price manipulation vulnerabilities, often via flash loans, are a devastating class of attacks causing significant financial…

Cryptography and Security · Computer Science 2026-04-30 Lu Liu , Wuqi Zhang , Lili Wei , Hao Guan , Yongqiang Tian , Yepang Liu , Shing-Chi Cheung

Decentralized Finance (DeFi) attacks have resulted in significant losses, often orchestrated through Adversarial Exploiter Contracts (AECs) that exploit vulnerabilities in victim smart contracts. To proactively identify such threats, this…

Cryptography and Security · Computer Science 2025-09-09 Xng Ai , Shudan Lin , Zecheng Li , Kai Zhou , Bixin Li , Bin Xiao

Billions of dollars are lost every year in DeFi platforms by transactions exploiting business logic or accounting vulnerabilities. Existing defenses focus on static code analysis, public mempool screening, attacker contract detection, or…

Cryptography and Security · Computer Science 2025-10-21 Abdulrahman Alhaidari , Balaji Palanisamy , Prashant Krishnamurthy

Smart contracts govern billions of dollars in decentralized finance (DeFi), yet automated vulnerability detection remains challenging because many vulnerabilities are tightly coupled with project-specific business logic. We observe that…

Cryptography and Security · Computer Science 2026-03-30 Ziqiao Kong , Wanxu Xia , Chong Wang , Yi Lu , Pan Li , Shaohua Li , Zong Cao , Yang Liu

Decentralized finance, i.e., DeFi, has become the most popular type of application on many public blockchains (e.g., Ethereum) in recent years. Compared to the traditional finance, DeFi allows customers to flexibly participate in diverse…

Cryptography and Security · Computer Science 2021-03-05 Bin Wang , Han Liu , Chao Liu , Zhiqiang Yang , Qian Ren , Huixuan Zheng , Hong Lei
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