How much was lost in the BitBot hack?

The BitBot hack resulted in $805K in losses on February 20, 2021.

What attack technique was used in the BitBot exploit?

The BitBot exploit utilized Rugpull. Understanding this attack vector is critical for smart contract auditors and developers building secure DeFi protocols.

How can developers prevent similar smart contract attacks?

Preventing smart contract hacks requires a combination of secure coding practices, thorough security audits, and understanding common attack vectors like reentrancy, oracle manipulation, and access control flaws. Smart Contract Hacking (SCH) provides hands-on training to help developers and auditors identify and prevent vulnerabilities before deployment.

BitBot Hack

TOTAL LOST $805K

Low Feb 20, 2021 Rugpull ethereum

Affected Chain ethereum Incident surface

Recovered - No recovery reported

All-Time Rank #880 By amount stolen

Protocol Type Exit Scam/Rugpull Target category

Incident Overview

The project was holding a fundraising event using Token Sale contract:

https://etherscan.io/address/0x11ab1c26…aff2c7#code

The final funds' recipient was the contract deployer:

https://etherscan.io/address/0x11ab1c26…aff2c7#internaltx

615 ETH were transferred to the contract deployer:

https://etherscan.io/tx/0x1f2ef3fc…f0ffb1

The contract deployer use added initial liquidity using 300 ETH:

https://etherscan.io/tx/0x899d79c7…69bb84

The contract deployer removed 89 ETH and 1,075 BBP from the liquidity pair:

https://etherscan.io/tx/0x3cfea957…4931fb

The contract deployer sold 1,017 BBP For 15.69 ETH:

https://etherscan.io/tx/0x0fe2adf8…375d64

Incident Report

Protocol / Project BitBot

Date of Incident February 20, 2021

Affected Chain(s) ethereum

Attack Technique Rugpull

Classification Other

Primary Source View Post-Mortem

Protocol Information

Protocol Type Exit Scam/Rugpull

Affected Token BBP

Official Website bitbotprotocol.tech/

Protocol Twitter/X @BitbotProtocol

Market Context at Time of Hack

Protocol Links

GitHub

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 ethereum smart contracts and deploy a custom exploit contract

Protocol Analysis Identification of the exploitable vulnerability in BitBot's contract logic - root cause: other

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

If you're auditing a protocol with similar architecture to BitBot, these are the critical security checks that could have prevented this incident (February 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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Sources & References

01
Source 1 https://bitbotprotocol.tech/
02
Web Archive https://web.archive.org/web/20210130165116/https://bitbotprotoco…

Threat Assessment

Severity Level

LOW

Attack Vector Rugpull
Root Cause Other
Year 2021

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