How much was lost in the pNetwork hack?

The pNetwork hack resulted in $13.0M in losses on October 04, 2021.

What attack technique was used in the pNetwork exploit?

The pNetwork exploit utilized Log Spoofing. 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.

pNetwork Hack

TOTAL LOST $13.0M

High Oct 04, 2021 Log Spoofing bitcoin bsc

Affected Chain bitcoin 2 chains affected

Recovered - No recovery reported

All-Time Rank #273 By amount stolen

Auditors 1 Prior security audit

Incident Overview

pNetwork is a protocol that enables cross-chain operations, such as transferring assets from one blockchain to another. It is designed to provide interoperability between different blockchain networks, allowing users to take advantage of the unique features and capabilities of each network while still being able to access and use their assets on other networks.

Incident Report

Protocol / Project pNetwork

Date of Incident October 04, 2021

Affected Chain(s) bitcoin bsc

Attack Technique Log Spoofing

Classification Protocol Logic

Primary Source View Post-Mortem

Protocol Information

Protocol Type Bridge

Smart Contract Language Rust

Official Website p.network

Protocol Twitter/X @pNetworkDeFi

Market Context at Time of Hack

Token Categories

Collectibles & NFTs BNB Chain Ecosystem

Protocol Links

GitHub Reddit

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 log spoofing and Solidity and EVM internals

Capital Required Seed capital to cover gas and initial position setup

On-Chain Access Ability to interact with bitcoin, bsc smart contracts and deploy a custom exploit contract

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

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 Log Spoofing audit checklist and test coverage

Audited by Audit Report 1 — still lost $13.0M. Prior audits don't guarantee safety, especially after post-audit code changes.

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

Verify all logic paths related to Log Spoofing 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://www.halborn.com/blog/post/explained-the-pnetwork-hack-se…

Threat Assessment

Severity Level

HIGH

Attack Vector Log Spoofing
Root Cause Protocol Logic
Year 2021

Learn to Prevent the Next pNetwork

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