Bep Finance Hack

TOTAL LOST $212K
Low Rugpull binance

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain binance Incident surface
Recovered - No recovery reported
All-Time Rank #1271 By amount stolen
Auditors 1 Prior security audit

Incident Overview

The project was holding a fundraising event, this was stated as their Telegram announcement:

https://archive.ph/QUjcL#selection-141.0-141.42

The external address was the recipient of the investors' funds. In total, 821.79 BNB was gathered during the fundraising event:

https://explorer.bitquery.io/bsc/address/0x701aacd6…aefe76

All the funds were distributed between some external wallets at the following transactions:

https://bscscan.com/tx/0x4926be51…9a96ad

https://bscscan.com/tx/0xcd1eb46d…f13b97

https://bscscan.com/tx/0x3fac275d…9e644a

https://bscscan.com/tx/0xd64ffcac…83780d

https://bscscan.com/tx/0x443aa36c…efffee

The wallets, engaged in this case are marked as "Fake Phishing" by the BscScan.

Incident Report

Protocol / Project Bep Finance
Date of Incident
Affected Chain(s) binance
Attack Technique Rugpull
Classification Yield Aggregator
Primary Source View Post-Mortem

Protocol Information

Protocol Type Yield
Affected Token BEPF
Official Website bep.finance/
Protocol Twitter/X @bepfinance

Market Context at Time of Hack

Token Categories
DeFi Yield Farming BNB Chain Ecosystem
Protocol Links

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 rugpull and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with binance smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Bep Finance'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? Hard to catch — private key / OpSec failures are outside smart contract audit scope
Audited by Audit Report 1 — still lost $212K. Prior audits don't guarantee safety, especially after post-audit code changes.

If you're auditing a protocol with similar architecture to Bep Finance, these are the critical security checks that could have prevented this incident (March 2021).

  • Verify all logic paths related to Rugpull 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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Security Audit History

Sources & References

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