Drastic Watermelon

Drastic Watermelon

Blockchain Security Researcher

Summary

Drastic Watermelon is a distinguished blockchain security researcher with a career in web3 security that began in 2022. After excelling in audit competitions on platforms such as Code4rena and Sherlock, he was selected as a top fellow in Block 5 of the yAudit Fellowship and subsequently joined yAudit as a resident auditor, where he's also been serving as a Core contributor since late 2025. Watermelon is also a member of TheDAO's Security Council, a collective of 200 top security researchers in the blockchain industry.

Throughout his career, Watermelon has conducted comprehensive security reviews of a wide array of EVM smart contracts (Solidity and Vyper) for premier clients, including Coinbase, Uniswap, Yearn, Curve and Centrifuge. In 2024, he expanded his expertise to low-level client reviews, focusing initially on the Cosmos SDK and CosmWasm ecosystems before extending his work to Polkadot Parachains and native Rust implementations.

Key Achievements & Research

• Uniswap V4 Documentation Flaw: During a security review for Sickle, he discovered a critical error in Uniswap V4's documentation that put native token liquidity providers' funds at risk. The vulnerability was found to be actively exploited by an MEV bot shortly after its discovery. Twitter Thread
• Critical Vulnerability Identification: Identified a critical vulnerability in a major, EVM-compatible blockchain built on the Cosmos SDK.
• Sybil Attack Research: Authored a research post analyzing the economic viability and impact of sybil attacks within web3 audit competitions. (Blog Post)

Competitive Accomplishments

• 1st Place: Wonderland CTF @ Devconnect 2025 (Post)
• 1st Place: TermMax Audit Competition (Result)
• 2nd Place: Telcoin Network Audit Competition (Result)
• 2nd Place: Centrifuge Audit Competition (Result)