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Arbitrum Based Jimbos Protocol Scurries for Revival After $7M Exploit

Version 2 of Jimbos protocol was attacked over the weekend for $7.3 million, just days after going live.

Updated May 29, 2023, 6:33 a.m. Published May 29, 2023, 4:46 a.m. 2 min read
Arbitrum-based Jimbos was exploited. (Clint Patterson/Unsplash)

Developers behind the Arbitrum-based Jimbos Protocol are gauging the best way for the project to move forward after its version 2 (V2) faced a $7.5 million exploit over the weekend.

Jimbos said it was working with security researchers to reclaim lost funds – the same people who’ve previously helped Euler Finance recover over $200 million – and added that they would contact law enforcement by 4 P.M. UTC on Monday if the attacker failed to return the money.

Jimbos lost 4,090 ether (ETH) late on Saturday, which security analysts blamed on the lack of slippage control in the main contract. This allowed the yet-unidentified attackers to take out a $5.9 million flash loan, manipulate the prices of jimbo (JIMBO), and walk out with treasury funds.

The protocol planned to issue a semi-stable token backed by a basket of crypto tokens, alluring traders to this concept as similar projects have seen brief success.

Flash loans are a popular way for attackers to gain funds to conduct exploits on decentralized finance (DeFi) systems. The loans allow traders to borrow unsecured funds from lenders using smart contracts instead of third parties.

These do not require any collateral because the contract considers the transaction complete only when the borrower repays the lender – meaning a borrower defaulting on a flash loan would cause the smart contract to cancel the transaction, and the money would be returned to the lender.

Meanwhile, JIMBO, its token, traded at nearly 18 cents on Monday, slightly recovering in Asian morning hours as developers floated their protective plans.

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XRP News

A draft XRPL amendment notes that flash loan attacks are "structurally impossible" on the network because of how its transactions are built, an architectural quirk that has spared the chain from the exploit class that has cost Ethereum DeFi billions.

Що варто знати:

  • Recent DeFi exploits on protocols like Thorchain, Drift and KelpDAO have relied on flash loans, a mechanism that does not exist on the XRP Ledger.
  • Because XRPL transactions are atomic and cannot include composable intra-transaction calls, flash loan attacks are structurally impossible on the network.
  • As XRPL pursues AMM upgrades...