Hypr Network Hack

TOTAL LOST $215K
Low Other

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain 2023 Incident surface
Recovered - No recovery reported
All-Time Rank #1268 By amount stolen
Auditors 1 Prior security audit

Incident Overview

Quick Summary

Hypr OP Stack Bridge exploited due to a smart contract vulnerability, resulting in a loss of 2,570,000 HYPR tokens worth 215,193 USD.

Details of the Exploit

Hypr OP Stack Bridge, a bridge between Ethereum Mainnet and Hypr Network, was compromised on December 13, 2023. The exploit occurred due to a vulnerability that resulted from using a non-production-ready branch of the OP monorepo, which contained a critical vulnerability. This vulnerability allowed the reinitialization of the contract, enabling the attacker(s) to drain funds.

The stolen funds were subsequently sold on the open market, leading to a decline in the price of Hypr. The total loss from this exploit was approximately 215,193 USD, which is equivalent to 2,570,000 HYPR tokens.

Block Data Reference

Attacker Address:

https://etherscan.io/address/0x3ea6ba6d…420519

Funds Holder as of Dec 20, 2023:

https://etherscan.io/address/0x5b8d598b…46d1be

Malicious Transaction:

https://etherscan.io/tx/0x51ce3d9c…635f65

Malicious Contract Address:

https://etherscan.io/address/0xba6fa6e8…a3eb77

Incident Report

Protocol / Project Hypr Network
Date of Incident
Attack Technique Other
Classification Bridge
Primary Source View Post-Mortem

Protocol Information

Protocol Type Derivatives
Affected Token HYPR
Official Website www.hypr.network/
Protocol Twitter/X @hypr_network
Team Anonymous
Source Code Verified On-Chain

Market Context at Time of Hack

Token Categories
Collectibles & NFTs Decentralized Exchange (DEX) Token DeFi Wallet Ethereum Ecosystem AMM DEX Governance
Protocol Links
GitHub Discord 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 other and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in Hypr Network's contract logic - root cause: bridge
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 Other audit checklist and test coverage
Audited by Audit Report 1 — still lost $215K. Prior audits don't guarantee safety, especially after post-audit code changes.

If you're auditing a protocol with similar architecture to Hypr Network, these are the critical security checks that could have prevented this incident (December 2023).

  • Verify all logic paths related to Other 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.

Free Trial

Security Audit History

Sources & References

Browse all hacks

These hacks used the same attack technique. Understanding the pattern helps prevent future exploits.

DeFiTuna $570K
Other
Cascade $1.3M
Other
Lumi Finance $264K
Other
Hinkal $820K
Other
AIDCToken $121K
Other
Polymarket $3.0M
Other

Learn to Prevent the Next Hypr Network

The Hypr Network hack is one of many attacks that skilled auditors are trained to detect before deployment. Master real exploit patterns and defense techniques with hands-on Web3 security training.

Start Free Trial Browse Attack Library
Recreate exploit patterns safely Free Trial