Decentralized exchange aggregator CoW Swap’s DAO has urged users not to use its website after an unknown actor hijacked its domain.
In a Tuesday post on X, CoW Swap said a “DNS [Domain Name System] hijacking” affected its site, prompting the project to pause its backend and APIs. The team warned that a frontend exploit remained active on the swap.cow.fi address at the time of the alert.
“We are now actively working to resolve the situation,” CoW Swap wrote, adding: “Please continue to refrain from using swap dot cow dot fi until we confirm that it is safe to use.”
Domain and DNS attacks are a recurring problem in crypto, where phishing pages can put user funds at risk. Protocols including Balancer and Curve Finance have previously reported DNS hijack incidents.
The market reacted: the CoW Protocol’s COW token slid more than 3%, falling to $0.2159 from $0.2229 after news of the hijack.
Separately, blockchain security firm Hacken reported that Web3 projects lost $482 million to hacks and scams in Q1 2026. Hacken documented 44 incidents in the quarter, with phishing and social engineering accounting for the majority.
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