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We are investigating a security incident affecting the Echo cross

Panewslab • May 19, 2026

PANews reported on May 19th that Echo Protocol announced on its X platform that it is investigating a security incident affecting the Echo cross-chain bridge on the Monad chain. All cross-chain transactions remain suspended during the investigation, and official channels will provide timely updates.

Previously, it was reported that Echo Protocol was attacked on the Monad chain, and the hackers minted 1,000 eBTC and withdrew the funds through Curvance .

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Echo Protocol Exploit Results in $76M Loss Due to Compromised Admin Key On May 19, 2026, Echo Protocol, a Bitcoin DeFi platform, suffered a significant exploit on the Monad blockchain, leading to the unauthorized minting of 1,000 eBTC valued at approximately $76 million. The breach was attributed to a compromised admin key, allowing the attacker to mint and subsequently launder around $816,000 through Tornado Cash. The hacker deposited 45 eBTC worth $3.45 million into the lending platform Curvance, borrowed 11.29 WBTC, and converted it to ETH. Echo Protocol confirmed that the Monad network itself was not compromised, and they have regained control of the admin keys and burnt the remaining eBTC held by the attacker. The incident has prompted Echo Protocol to suspend all cross-chain transactions and enhance security measures. The attack reflects ongoing vulnerabilities in DeFi protocols, particularly concerning centralized key management. 12 sources 68

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Echo Protocol