---
title: "Litecoin Experiences 13-Block Reorganization After Double-Spending Attack"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/284213230.md"
description: "Litecoin faced a major disruption due to a double-spending attack that led to a 13-block reorganization. The attack exploited a bug in Litecoin's MWEB privacy extension, enabling the attacker to create invalid coins and sell Litecoin (LTC) before miners could reject the compromised chain. The reorganization impacted 32 minutes of transactions, but it took nearly three hours for the network to restore the affected blocks."
datetime: "2026-04-27T12:09:23.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/284213230.md)
  - [en](https://longbridge.com/en/news/284213230.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/284213230.md)
---

# Litecoin Experiences 13-Block Reorganization After Double-Spending Attack

Litecoin encountered a significant disruption following a double-spending attack that resulted in a 13-block reorganization. According to NS3.AI, the attack exploited a consensus bug within Litecoin's MWEB privacy extension, allowing the attacker to mint invalid coins and sell Litecoin (LTC) before patched miners rejected the compromised chain. Although the reorganization affected 32 minutes of transactions, it took the network nearly three hours in real time to replace the impacted blocks.

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