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onchainvanguard

Vance Huang

@onchainvanguard

Solana Smart Contract Auditor and Onchain Forensics

Hong Kong
English
About me
Solana smart contract auditor and on-chain forensics analyst. I run OnChain Vanguard, an independent security practice focused on Rust/Anchor programs and public-chain fund analysis. My work covers live audits of Solana DeFi programs (CLMM/CPMM AMMs, staking, LSTs) and reproducible case reports on major exploits, including a full technical reconstruction of the Cashio infinite-money bug ($52.8M). Every finding ships with a verifiable transaction hash or code reference. I do not touch client funds and I do not promise recovery — I produce evidence. ... Read more

Skills

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onchainvanguard
Vance Huang
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See my services

Blockchain Security & Audits
I will audit your solana smart contract rust anchor program
From$150 / projectMore details
Blockchain Security & Audits
I will analyze crypto transactions and write an onchain report
From$300 / projectMore details

Portfolio

Work experience

Independent

Blockchain Security Researcher

Independent • Freelance

Dec 2023 - Present • 2 yrs 10 mos

Independent Solana smart contract security research. Audit Rust/Anchor programs for access control flaws, arithmetic errors, missing signer and PDA checks, and rug-pull vectors. Reproduced a $52.8M exploit (Cashio) on a local validator as training. Also produce on-chain forensics reports tracing fund flows with verifiable transaction timelines.