Melo Hack

TOTAL LOST $90K
Low Improper Access Control bsc
Affected Chain bsc Incident surface
Recovered - No recovery reported
All-Time Rank #1912 By amount stolen
Protocol Type SoFi Target category

Incident Overview

melo (MELO) is a cryptocurrency launched in 2024and operates on the Ethereum platform. melo has a current supply of 420,690,000,000 with 0 in circulation. The last known price of melo is 0.00000005 USD and is up 0.00 over the last 24 hours.

It is currently trading on 5 active market(s) with $0.00 traded over the last 24 hours. More information can be found at https://melocto.com/.

Incident Report

Protocol / Project Melo
Date of Incident
Affected Chain(s) bsc
Attack Technique Improper Access Control
Classification Access Control

Protocol Information

Protocol Type SoFi
Smart Contract Language Solidity
Official Website melocto.com/
Protocol Twitter/X @CTO_Melo

Market Context at Time of Hack

Token Categories
Memes Ethereum Ecosystem Cat-Themed Animal Memes

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 Operational-security tradecraft (phishing, malware, leaked seed phrases, or insider access) to obtain treasury signing authority
Capital Required Minimal capital - only enough to cover gas while draining the compromised accounts
On-Chain Access Valid signing authority over the compromised wallets / multisig signers, allowing direct transfer of funds or stake authorization
Target Reconnaissance Identification of Melo's high-value treasury accounts and the authority / multisig structure controlling them
Execution Speed Speed to drain the compromised accounts before the team detects the breach and revokes signing authority or freezes the assets
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 Improper Access Control audit checklist and test coverage

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

  • Verify all logic paths related to Improper Access Control are guarded by proper access controls and input validation - see the Access Control 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 Access Control Attacks examples →

Learn to Prevent the Next Melo

The Melo 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.

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