Popular DeFi platform warns users to stay away from its site after security breach

Tech Share Share this article Copy link X icon X (Twitter) LinkedIn Facebook Email Popular DeFi platform warns users to stay away from its site after security breach The team that helps operate the platform, CoW Swap, said that it was working to resolve the issue for the DEX aggregator. By Margaux Nijkerk | Edited by Aoyon Ashraf Apr 14, 2026, 6:27 p.m. Make preferred on What to know : CoW Swap temporarily paused its platform after a DNS hijacking attack redirected users from its website, warning traders to avoid the interface while the issue is being resolved. The protocol’s core systems were not compromised, but the incident highlights ongoing security risks around web front-ends in DeFi platforms like CoW Swap, which aggregates liquidity and optimizes trades via competing solvers. CoW Swap, a decentralized trading interface, said Tuesday it temporarily halted its services after detecting a domain name system (DNS) hijacking incident affecting its website, underscoring ongoing security risks at the front-end layer of DeFi platforms. In a post on X , the team said the attack occurred at 14:54 UTC and warned users to avoid interacting with its interface until further notice. While the protocol’s underlying infrastructure, including its backend and APIs, was not directly compromised, both were paused “as a precaution” as the team worked to resolve the issue. DNS hijacking allows attackers to redirect users from a legitimate domain to a malicious lookalike site, often with the goal of draining crypto wallets or harvesting private data. The attack vector has become a persistent weak point in decentralized finance, where users typically rely on web-based interfaces to access otherwise secure smart contracts. CoW Swap operates as a decentralized exchange aggregator, sourcing liquidity across venues and using a mechanism known as “Coincidence of Wants” to match trades directly between users or batch them for more efficient execution. Orders are handled by competing “solvers” that optimize trade outcomes, a design intended to reduce slippage and limit exposure to maximal extractable value (MEV). MEV is a practice on the blockchain where bots reorder transactions to extract profit at users’ expense, making mitigation key to ensuring fair pricing and protecting traders. The platform is governed by CoW DAO, a decentralized autonomous organization spun out of the Gnosis ecosystem. The project has positioned itself as a user-protective alternative in DeFi trading, emphasizing execution quality and fairer trading outcomes. “We are now actively working to resolve the situation. Please continue to refrain from using swap dot cow dot fi until we confirm that it is safe to use,” the team wrote on X . Read more: DEX Aggregator CoW Swap Targets 33% Trading Boost With Collaboration Feature, More Rewards Ethereum News More For You Ethereum Foundation unveils $1M audit subsidy program to boost crypto security and cut costs for builders By Margaux Nijkerk | Edited by Stephen Alpher 24 minutes ago The new initiative aims to address a persistent challenge in crypto development—the high cost of smart contract security audits. What to know : The Ethereum Foundation on Tuesday launched a $1 million Audit Subsidy Program to help builders offset the high cost of smart contract security audits, a key barrier to safer development. Part of its broader “Trillion Dollar Security” push, the initiative partners with major firms and 20+ audit providers to expand... Read full story Latest Crypto News Ethereum Foundation unveils $1M audit subsidy program to boost crypto security and cut costs for builders 24 minutes ago Goldman Sachs files for bitcoin income ETF in crypto push 2 hours ago High Roller stock more than doubles on prediction markets partnership with Crypto.com 3 hours ago Bitcoin climbs to highest level since Feb. 5 crash that sent price plunging to $60,000 3 hours ago Why Cantor Fitzgerald thinks Robinhood and Coinbase are the best ways to play the prediction market boom 4 hours ago Scroll moves to cut costs after top protocol migrates to Optimism 4 hours ago Top Stories JPMorgan CFO warns stablecoins risk becoming ‘regulatory arbitrage’ play 4 hours ago Visa and Zodia Custody join Stripe’s new blockchain for machine payments 5 hours ago Bitcoin rises to one-month high above $75,000 as analysts eye major breakout 5 hours ago XRP Ledger adds zero-knowledge proofs targeting institutional privacy gap 5 hours ago Tether introduces crypto wallet to bring stablecoin and bitcoin payments directly to users 5 hours ago Bitcoin passes halfway point in halving cycle as price gains trail prior cycles 6 hours ago