Echo Protocol confirms it has been attacked and suspends all cross-chain transactions
By: rootdata|2026/05/19 10:44:12
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Echo Protocol announced that it is investigating a security incident affecting the Echo cross-chain bridge on Monad. During the investigation, all cross-chain transactions remain suspended.
According to previous reports, market news indicated that Echo Protocol was hacked on Monad. The attacker minted 1,000 eBTC (approximately $76.7 million) and used a tested process to deposit 45 eBTC (approximately $34.5 million) into Curvance. Subsequently, they borrowed approximately 11.29 WBTC (approximately $867,700) using this as collateral, bridged the WBTC to Ethereum, exchanged it for ETH, and ultimately transferred 384 ETH (approximately $821,700) to Tornado Cash.
Yuxian, the founder of Slow Mist, stated that Echo Protocol may have been compromised due to the Admin single point private key being breached.
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