How much was lost in the Poz finance hack?

The Poz finance hack resulted in $56K in losses on January 22, 2021.

What attack technique was used in the Poz finance exploit?

The Poz finance 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.

Poz finance Hack

TOTAL LOST $56K

Low Jan 22, 2021 Rugpull binance

Affected Chain binance Incident surface

Recovered - No recovery reported

All-Time Rank #1693 By amount stolen

Protocol Type Farm Target category

Incident Overview

According to the pinned message in the project's announcement channel on Telegram, the project team was holding a pre-sale event at that moment:

https://archive.is/BTpkP, where funds receiver was this Presale smart contract:

https://bscscan.com/address/0x354f675d…6b4d92

Presale smart contract transferred raised funds to the final recipient - the contract deployer wallet. This fact can be verified by the transaction list from 21.01.2021 (start of the presale event):

https://explorer.bitquery.io/bsc/txs/transfers?currency=BNB&receiver=0x8375f77e…4c2073

The contract deployer distributed stolen funds between some external wallets at the following transactions:

https://bscscan.com/tx/0x37788e98…bbb213

https://bscscan.com/tx/0x464dadcd…607044

https://bscscan.com/tx/0x29165ba9…3abc47

https://bscscan.com/tx/0xe01f160d…6a4453

https://bscscan.com/tx/0xf77e1e60…917896

https://bscscan.com/tx/0x94f97112…6a14e3

https://bscscan.com/tx/0xa0ae88a0…3f4716

https://bscscan.com/tx/0x8721007c…8fb22f

Incident Report

Protocol / Project Poz finance

Date of Incident January 22, 2021

Affected Chain(s) binance

Attack Technique Rugpull

Classification Yield Aggregator

Primary Source View Post-Mortem

Protocol Information

Protocol Type Farm

Affected Token POZ

Official Website poz.finance/

Protocol Twitter/X @PodFinance

Market Context at Time of Hack

Token Categories

Launchpad Avalanche Ecosystem Ferrum Network BNB Chain Ecosystem

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 binance smart contracts and deploy a custom exploit contract

Protocol Analysis Identification of the exploitable vulnerability in Poz 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

If you're auditing a protocol with similar architecture to Poz finance, these are the critical security checks that could have prevented this incident (January 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://twitter.com/coinprof/status/1359443409602301953
02
Web Archive https://web.archive.org/web/20210118151607/https://poz.finance/

Threat Assessment

Severity Level

LOW

Attack Vector Rugpull
Root Cause Yield Aggregator
Year 2021

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