---
title: "Flow Blockchain Implements Protocol Fix Following Exploit"
type: "News"
locale: "zh-HK"
url: "https://longbridge.com/zh-HK/news/270902700.md"
description: "Flow Blockchain has implemented a protocol fix after a recent exploit, coordinating with node operators to revert the network to a pre-attack checkpoint. Unauthorized transactions are being removed, and users must resubmit transactions made during the interruption. Approximately $3.9 million was transferred by attackers, but user balances remain safe. Asset freezes have been requested from Circle, Tether, and major exchanges."
datetime: "2025-12-28T01:33:39.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/270902700.md)
  - [en](https://longbridge.com/en/news/270902700.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/270902700.md)
---

> 支持的語言: [简体中文](https://longbridge.com/zh-CN/news/270902700.md) | [English](https://longbridge.com/en/news/270902700.md)


# Flow Blockchain Implements Protocol Fix Following Exploit

According to Foresight News, Flow has announced the deployment of a protocol fix to address a recent exploit. Node operators are coordinating the upgrade to revert the network to a checkpoint prior to the attack, removing unauthorized transactions from the ledger. Flow emphasized that this rollback is essential to mitigate the impact of the attack. Users are advised to resubmit transactions made during the network interruption from December 27, 15:25 to December 27, 21:30 UTC+8 once the network is restored. The foundation will confirm these transactions upon the network's official relaunch. Flow reported that attackers exploited a vulnerability in the Flow execution layer on December 27, transferring approximately $3.9 million before the network shutdown. The attack did not compromise existing user balances, ensuring the safety of all deposits. The funds were primarily moved through bridges like Celer, Debridge, Relay, and Stargate. The attacker’s wallet has been identified and flagged, with laundering activities via Thorchain and Chainflip being actively monitored. Flow Foundation has also requested asset freezes from Circle, Tether, and major exchanges.

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