How much was lost in the iProtocol hack?

The iProtocol hack resulted in $42K in losses on December 21, 2020.

What attack technique was used in the iProtocol exploit?

The iProtocol 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.

iProtocol Hack

TOTAL LOST $42K

Low Dec 21, 2020 Rugpull ethereum

Affected Chain ethereum Incident surface

Recovered - No recovery reported

All-Time Rank #1760 By amount stolen

Auditors 1 Prior security audit

Incident Overview

The contract deployer transferred tokens to the iProtocolPreSale smart contract, which gathered funds from the fundraising event and added initial liquidity at:

https://etherscan.io/tx/0xa109005b…22e893

The contract deployer used hidden minting functionality under the increaseAllowance() function to generate new tokens onto his wallet at:

https://etherscan.io/tx/0x0b5944f6…51ffba

The minted tokens were sold by the contract deployer in the following transactions:

https://etherscan.io/tx/0xcca01f5d…7e1018

https://etherscan.io/tx/0x0403198f…0cfffa

https://etherscan.io/tx/0xaeac86a7…cc66e4

Incident Report

Protocol / Project iProtocol

Date of Incident December 21, 2020

Affected Chain(s) ethereum

Attack Technique Rugpull

Classification Other

Primary Source View Post-Mortem

Protocol Information

Protocol Type RWA

Affected Token IYP

Official Website iprotocol.io/

Protocol Twitter/X @iprotocol_io

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 iProtocol'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

Audited by Audit Report 1 — still lost $42K. Prior audits don't guarantee safety, especially after post-audit code changes.

If you're auditing a protocol with similar architecture to iProtocol, these are the critical security checks that could have prevented this incident (December 2020).

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

Audit Report 1 Report

Sources & References

01
Source 1 https://t.me/defiyield_ann/336

Threat Assessment

Severity Level

LOW

Attack Vector Rugpull
Root Cause Other
Year 2020

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