The Unichain-based decentralized exchange is the latest to fall victim to a multi-million-dollar exploit.
By Wahid Pessarlay
Editor Julia Sakovich
Updated
1 min read
Bunni, a Unichain-based decentralized exchange, suffered a multi-million-dollar hack early on Tuesday, Sept. 2.
According to an X post by the blockchain security firm Hacken, the DEX, which is powered by Uniswap V4, lost $8.4 million to hackers.
🚨 Alert 🚨@bunni_xyz has suffered an $8.4M exploit on Unichain ($6M) and Ethereum ($2.4M).
Currently, half of the stolen funds on Unichain were swapped to ETH and bridged to Ethereum in 100 ETH bridge txs via Across Protocol. Attack txs below 👇 pic.twitter.com/ePyGiFfcHN
— Hacken🇺🇦 (@hackenclub) September 2, 2025
Attackers stole Ethereum ETH $4 286 24h volatility: 2.6% Market cap: $516.84 B Vol. 24h: $29.43 B , USDC USDC $1.00 24h volatility: 0.0% Market cap: $71.76 B Vol. 24h: $14.19 B , and USDT USDT $1.00 24h volatility: 0.0% Market cap: $168.03 B Vol. 24h: $82.79 B via the layer-2 Unichain and the Ethereum network.
Hacken wrote that all of the Unichain-based funds have already been swapped to ETH tokens in multiple ~100 ETH transactions via the cross-chain bridge Across Protocol.
Nearly an hour after the incident, the exchange announced on its X that all smart contracts have been paused on “all networks.”
🚨 The Bunni app has been affected by a security exploit. As a precaution, we have paused all smart contract functions on all networks. Our team is actively investigating and will provide updates soon. Thank you for your patience.
— Bunni (@bunni_xyz) September 2, 2025
Bunni operates on Unichain, Ethereum, Arbitrum, Base and BNB Smart Chain.
According to DefiLlama data, the decentralized protocol has $50.6 million in total value locked. Unichain and Ethereum, each with a TVL of $32.8 million and $17.4 million, have the major share.
Crypto hacks have seen a notable rise over the past three months again. Coinspeaker reported that August saw over $163 million lost to fraudulent actors, marking the third consecutive monthly spike in exploits.
Disclaimer: Coinspeaker is committed to providing unbiased and transparent reporting. This article aims to deliver accurate and timely information but should not be taken as financial or investment advice. Since market conditions can change rapidly, we encourage you to verify information on your own and consult with a professional before making any decisions based on this content.
Wahid has been analyzing and reporting on the latest trends in the decentralized ecosystem since 2019. He has over 4,000 articles to his name and his work has been featured on some of the leading outlets including Yahoo Finance, Investing.com, Cointelegraph, and Benzinga. Other than reporting, Wahid likes to connect the dots between DeFi and macro on his newsletter, On-chain Monk.