Coinsuper Hack

TOTAL LOST —
Other

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain 2021 Incident surface
Recovered - No recovery reported
Same Technique 415 Total incidents
Protocol Type Exit Scam/Other Target category

Incident Overview

Quick Summary

A Hong Kong based centralized exchange Coinsuper stopped user withdrawals. All complaints were ignored by the administration.

In January 2022, a few users reported their losses to the Hong Kong police.

The exchange’s website is down.

Incident Report

Protocol / Project Coinsuper
Date of Incident
Attack Technique Other
Classification CeFi
Primary Source View Post-Mortem

Protocol Information

Protocol Type Exit Scam/Other
Official Website www.coinsuper.com/
Team Public / Doxxed
Source Code Unverified

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 Coinsuper's contract logic - root cause: cefi
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

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

  • 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

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