Curio Hack

TOTAL LOST $16.0M
High Voting Power Inflation ethereum

Summarize with AI

Affected Chain ethereum Incident surface
Recovered - No recovery reported
All-Time Rank #256 By amount stolen
Year 2024 Incident year

Incident Overview

Uro (URO) is a cryptocurrency . Users are able to generate URO through the process of mining. Uro has a current supply of 1,207,310.4.

The last known price of Uro is 0.04105405 USD and is up 0.00 over the last 24 hours. More information can be found at http://uro.io.

Incident Report

Protocol / Project Curio
Date of Incident
Affected Chain(s) ethereum
Attack Technique Voting Power Inflation
Classification Protocol Logic
Primary Source View Post-Mortem

Protocol Information

Smart Contract Language Solidity
Official Website uro.io

Market Context at Time of Hack

Token Categories
Mineable

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 voting power inflation 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 Curio'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 Voting Power Inflation audit checklist and test coverage

If you're auditing a protocol with similar architecture to Curio, these are the critical security checks that could have prevented this incident (March 2024).

  • Verify all logic paths related to Voting Power Inflation are guarded by proper access controls and input validation - see the Dao Governance Attacks attack class for patterns
  • 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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Related Attack Classes

The technique used in this hack maps to these vulnerability classes in our security curriculum:

See all Dao Governance Attacks examples →

Sources & References

Learn to Prevent the Next Curio

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