How much was lost in the Dasis Cash hack?

The Dasis Cash hack resulted in — in losses on January 10, 2021.

What attack technique was used in the Dasis Cash exploit?

The Dasis Cash exploit utilized Abandoned. Understanding this attack vector is critical for smart contract auditors and developers building secure DeFi protocols.

How can developers prevent similar smart contract attacks?

Preventing smart contract hacks requires a combination of secure coding practices, thorough security audits, and understanding common attack vectors like reentrancy, oracle manipulation, and access control flaws. Smart Contract Hacking (SCH) provides hands-on training to help developers and auditors identify and prevent vulnerabilities before deployment.

Dasis Cash Hack

TOTAL LOST —

Jan 10, 2021 Abandoned ethereum

Affected Chain ethereum Incident surface

Recovered - No recovery reported

Same Technique 15 Total incidents

Auditors 1 Prior security audit

Incident Overview

A review of the token contract shows low network activity, which didn't lead to significant funds loss for the user in the past. The project is considered abandoned.

Incident Report

Protocol / Project Dasis Cash

Date of Incident January 10, 2021

Affected Chain(s) ethereum

Attack Technique Abandoned

Classification Token

Primary Source View Post-Mortem

Protocol Information

Protocol Type Algo-Stables

Affected Token DAIC

Official Website dasis.cash/

Protocol Twitter/X @DasisCash

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 abandoned 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 Dasis Cash's contract logic - root cause: token

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 Abandoned audit checklist and test coverage

Audited by Audit Report 1 — still lost —. Prior audits don't guarantee safety, especially after post-audit code changes.

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

Verify all logic paths related to Abandoned 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.

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Security Audit History

Audit Report 1 Report

Sources & References

01
Source 1 https://twitter.com/SolidityFinance/status/1348303582907478021
02
de.fi Analysis https://t.me/defiyield_ann/380

Threat Assessment

Severity Level

UNKNOWN

Attack Vector Abandoned
Root Cause Token
Year 2021

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