---
id: 5106
title: "Binance Smart Chain Token Bridge Hack"
source_domain: swarm.ptsecurity.com
source_url: "https://swarm.ptsecurity.com/binance-smart-chain-token-bridge-hack/"
published_at: "2023-02-09T13:28:08Z"
tags: ["web3", "blockchain", "web3-security", "binance", "bridge-hack", "merkle-proof"]
phying_url: "https://phying.com/item/5106"
lang: en
---

# Binance Smart Chain Token Bridge Hack

## Summary

Anatomy of the October 2022 BSC Token Hub hack ($586M): the bridge validated cross-chain transfers via Merkle proofs over an AVL tree, and forged proof data let attackers withdraw 2 million BNB.

## Intelligence Metadata

- **Sources:** swarm.ptsecurity.com
- **Published:** 2023-02-09T13:28:08Z
- **Original:** https://swarm.ptsecurity.com/binance-smart-chain-token-bridge-hack/
- **Phying News:** https://phying.com/item/5106