---
title: "Echo Protocol Investigates Security Incident on Monad"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286845187.md"
description: "Echo Protocol is investigating a security incident involving its cross-chain bridge on Monad, with all transactions suspended. Reports indicate a hack where an attacker minted 1,000 eBTC, deposited 45 eBTC into Curvance, borrowed 11.29 WBTC, and exchanged it for ETH, transferring 384 ETH to Tornado Cash. Concerns arise over a potential compromise of an admin private key."
datetime: "2026-05-19T02:33:56.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286845187.md)
  - [en](https://longbridge.com/en/news/286845187.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286845187.md)
---

# Echo Protocol Investigates Security Incident on Monad

Echo Protocol is currently investigating a security incident affecting its cross-chain bridge on Monad. According to ChainCatcher, all cross-chain transactions remain suspended during the investigation. Previously, market reports indicated that Echo Protocol was hacked on Monad. The attacker minted 1,000 eBTC and deposited 45 eBTC into Curvance. Using this as collateral, they borrowed approximately 11.29 WBTC, which was then bridged to Ethereum and exchanged for ETH. Ultimately, 384 ETH was transferred to Tornado Cash. SlowMist founder Yu Jian suggested that the theft might have been caused by the compromise of an admin single-point private key.

### Related Stocks

- [GBTC.US](https://longbridge.com/en/quote/GBTC.US.md)
- [ETHE.US](https://longbridge.com/en/quote/ETHE.US.md)
- [LMBO.US](https://longbridge.com/en/quote/LMBO.US.md)
- [COIW.US](https://longbridge.com/en/quote/COIW.US.md)
- [BLCN.US](https://longbridge.com/en/quote/BLCN.US.md)
- [IMRA.US](https://longbridge.com/en/quote/IMRA.US.md)
- [ETHW.US](https://longbridge.com/en/quote/ETHW.US.md)
- [HODL.US](https://longbridge.com/en/quote/HODL.US.md)
- [BLOK.US](https://longbridge.com/en/quote/BLOK.US.md)
- [EETH.US](https://longbridge.com/en/quote/EETH.US.md)
- [BITB.US](https://longbridge.com/en/quote/BITB.US.md)
- [BRRR.US](https://longbridge.com/en/quote/BRRR.US.md)

## Related News & Research

- [Ethereum Community Debates Changes To Staking Model As ETH Remains Stuck Below $2,300](https://longbridge.com/en/news/286153164.md)
- ['The Entire Economy Is Going To Be Tokenized,' Consensys CEO Joseph Lubin Says, Positioning Ethereum As The Winner](https://longbridge.com/en/news/286265353.md)
- [THORChain Price Outlook: Panic or Opportunity After RUNE Crashes 30%?](https://longbridge.com/en/news/286643134.md)
- [Kelp DAO eyes unpausing withdrawals after attackers’ rsETH on Arbitrum is burned](https://longbridge.com/en/news/286196944.md)
- [ChatGPT Can Now Connect to Your Financial Accounts for Budgeting Advice](https://longbridge.com/en/news/286596894.md)