---
title: "Echo Protocol Halts Cross-Chain Transactions Following $76.7 Million Exploit"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286847608.md"
description: "Echo Protocol has temporarily suspended all cross-chain transactions in response to a security breach that resulted in a $76.7 million exploit on its bridge. According to NS3.AI, the protocol is currently investigating the incident to determine the cause and extent of the breach. Echo Protocol has assured users that further information will be provided through its official channels as the investigation progresses."
datetime: "2026-05-19T03:07:22.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286847608.md)
  - [en](https://longbridge.com/en/news/286847608.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286847608.md)
---

# Echo Protocol Halts Cross-Chain Transactions Following $76.7 Million Exploit

Echo Protocol has temporarily suspended all cross-chain transactions in response to a security breach that resulted in a $76.7 million exploit on its bridge. According to NS3.AI, the protocol is currently investigating the incident to determine the cause and extent of the breach. Echo Protocol has assured users that further information will be provided through its official channels as the investigation progresses.

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