Gate News message, April 15 — CoW Swap suspended its protocol yesterday (April 14) after attackers hijacked the DNS records of swap.cow.fi at 14:54 UTC, redirecting users to a malicious frontend that drained at least $1 million in crypto assets within three hours. Cow DAO issued a public warning at 15:41 UTC and confirmed the DNS compromise at 16:24 UTC.
On-chain data shows the attack intercepted at least $1 million, including 219 ETH from a single wallet. The exploit targeted the domain at the registrar level, cloning the interface to trick users into approving wallet-draining transactions. Smart contracts and backend systems were not compromised, but the protocol remained offline as a precaution.
Cow DAO instructed affected users at 16:33 UTC to revoke token approvals via revoke.cash. Security firm Blockaid flagged the malicious domains during the incident. CoW Swap, part of the Gnosis ecosystem, uses batch auctions and Coincidence of Wants matching to process trades. No timeline for service restoration has been announced.
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