numa. Hack

TOTAL LOST $320K
Low NumaVault Exploit sonic

Summarize with AI

Affected Chain sonic Incident surface
Recovered - No recovery reported
All-Time Rank #1127 By amount stolen
Year 2025 Incident year

Incident Overview

UMA (UMA) is a cryptocurrency and operates on the Ethereum platform. UMA has a current supply of 127,838,943.4302642 with 91,412,716.4826194 in circulation. The last known price of UMA is 0.41422902 USD and is down -0.01 over the last 24 hours.

It is currently trading on 316 active market(s) with $4,630,573.49 traded over the last 24 hours. More information can be found at https://umaproject.org/.

Incident Report

Protocol / Project numa.
Date of Incident
Affected Chain(s) sonic
Attack Technique NumaVault Exploit
Classification Protocol Logic
Primary Source View Post-Mortem

Protocol Information

Smart Contract Language Solidity
Official Website umaproject.org/
Protocol Twitter/X @UMAprotocol

Market Context at Time of Hack

Token Categories
DeFi Derivatives Oracles DAO Ethereum Ecosystem Coinbase Ventures Portfolio Governance Avalanche Ecosystem

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 numavault exploit and Solidity and EVM internals
Capital Required Seed capital to cover gas and initial position setup
On-Chain Access Ability to interact with sonic smart contracts and deploy a custom exploit contract
Protocol Analysis Identification of the exploitable vulnerability in numa.'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 NumaVault Exploit audit checklist and test coverage

If you're auditing a protocol with similar architecture to numa., these are the critical security checks that could have prevented this incident (August 2025).

  • Verify all logic paths related to NumaVault Exploit 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

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Sources & References

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