Boy X Highspeed Hack

TOTAL LOST $2.6M
Medium Other

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain 2022 Incident surface
Recovered - No recovery reported
All-Time Rank #590 By amount stolen
Protocol Type Exploit/Other Target category

Incident Overview

Quick Summary

Boy X Highspeed exploit happened using privileged access, 1865 $ETH was stolen and transferred using Tornado Cash

Details of the Exploit

Boy X Highspeed's staking pool contract on the Binance and the AVAX chain was exploited for the total amount of various assets worth 2,584,890 $USD. All funds were withdrawn from the staking contract using the privileged function inCaseTokensGetStuck(). Consequently, the stolen funds on both chains were bridged to the Ethereum chain and transferred using Tornado Cash.

Block Data Reference

Attacker's privileged address:

https://bscscan.com/address/0xafc6e88c…2f7be3

Attacker's address used for transfer assets:

https://bscscan.com/address/0x158f5cb7…8ce345

https://etherscan.io/address/0x158f5cb7…8ce345

BXH Staking contract:

https://bscscan.com/address/0xcc47dac5…c3a474

Withdraw transaction:

https://bscscan.com/tx/0x632fc37c…56d871

Tornado Cash transfers:

https://etherscan.io/tx/0x11d407d9…eb035b

Incident Report

Protocol / Project Boy X Highspeed
Date of Incident
Attack Technique Other
Classification Yield Aggregator
Primary Source View Post-Mortem

Protocol Information

Protocol Type Exploit/Other
Team Anonymous
Source Code Verified On-Chain

What the Attacker Needed to Succeed

Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.

Technical Knowledge Deep understanding of other and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Boy X Highspeed's contract logic - root cause: yield aggregator
Execution Speed Precise transaction ordering and timing to exploit the vulnerability within a single atomic block
Obfuscation Plan A strategy to launder and move stolen funds - typically through mixers, cross-chain bridges, or decentralized DEX swaps to resist tracing

What Auditors Should Check

Could this have been caught in audit? Likely — with a thorough Other audit checklist and test coverage

If you're auditing a protocol with similar architecture to Boy X Highspeed, these are the critical security checks that could have prevented this incident (September 2022).

  • Verify all logic paths related to Other are guarded by proper access controls and input validation
  • Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs

Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.

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