DeFi Transaction Batching Tool Exploited for $14M

The exploiter used a fake contract to trick the dapp into thinking it was an Aave v2 update.

AccessTimeIconFeb 27, 2021 at 10:58 p.m. UTC
Updated Sep 14, 2021 at 12:18 p.m. UTC

Decentralized finance (DeFi) application Furucombo lost $14 million after an exploiter apparently used a fake contract to trick the app into thinking it was an Aave v2 update. Furucombo later tweeted that the vulnerability had been fixed.

The exploiter used this contract to transfer approved tokens to its address, The Block Research’s Igor Igamberdiev tweeted on Saturday.

The attack also affected DeFi protocol Cream Finance’s treasury funds, taking $1.1 million, according to a tweet from the protocol’s team.

Furucombo is a tool that allows users to bundle orders on various DeFi protocols and to send them out in one transaction.  

“We're in the process of investigating the stolen fund and organizing the follow-up actions,” Furucombo tweeted.


Please note that our privacy policy, terms of use, cookies, and do not sell my personal information has been updated.

The leader in news and information on cryptocurrency, digital assets and the future of money, CoinDesk is a media outlet that strives for the highest journalistic standards and abides by a strict set of editorial policies. CoinDesk is an independent operating subsidiary of Digital Currency Group, which invests in cryptocurrencies and blockchain startups. As part of their compensation, certain CoinDesk employees, including editorial employees, may receive exposure to DCG equity in the form of stock appreciation rights, which vest over a multi-year period. CoinDesk journalists are not allowed to purchase stock outright in DCG.

Learn more about Consensus 2024, CoinDesk’s longest-running and most influential event that brings together all sides of crypto, blockchain and Web3. Head to to register and buy your pass now.