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Vishal Singh

Blockchain Cryptography Security Researcher

Security work across smart contracts, blockchain infrastructure, zero-knowledge systems, MPC, FHE, and applied cryptography.

If you’re evaluating fit for an audit, this page is the fastest summary of the types of systems I review, the classes of bugs I find, and the public/private track record behind that work.

What this work covers

Selected public disclosures

[redacted] (zkVM)

GOAT Network

LeanEthereum / leanMultisig (zkVM)

LeanEthereum / leanSig

[redacted] (FHE)

Competitive audit record

Project Area Date Result
Citrea Infrastructure Aug 2025 11 findings
Geneius Contracts Solana Jul 2025 6th RankDoS in Solana via order_hash collision
Genius Foundation Infrastructure Jul 2025 4 findings
Succinct Infrastructure Jul 2025 1 finding
Sorella Angstrom Patrol / AMM Jun 2025 4th RankFees stolen by changing initialized ticks
Telcoin Network Infrastructure Jun 2025 2 findings
Nitro Labs / Solaxy Infrastructure Jun 2025 8th RankStale owner index ghost programs
Space and Time Infrastructure May 2025 2 findings
Alchemix v3 DeFi May 2025 1 finding
DefiApp DeFi Feb 2025 1 finding
FarcasterAttestation Protocol Jan 2025 16th RankLack of ERC-165 compliance leads to failures
Daao Protocol Jan 2025 6 findings
Chorus One Infrastructure Jan 2025 6 findings
StakeUp Protocol Oct 2024 1 finding
InfinityPools AMM Oct 2024 1 High
Symbiotic Infrastructure Sep 2024 1 finding
ZeroLend One Lending Aug 2024 1 High, 1 Medium
Winnables Raffles NFT Aug 2024 1 finding
Tadle Protocol Aug 2024 1 finding
LoopFi Lending Jul 2024 1 finding
Napier DeFi Jun 2024 9th RankLoss of funds due to not collecting fees
RadicalxChange Auctions Mar 2024 3rd RankHighest bidder can withdraw collateral
Napier DeFi Feb 2024 1 Medium

Selected private technical reviews

System Stack Date Summary
Infrastructure Verifier Rust / ZK Oct 2025 Private (1C, 2H, 3M, 11L)
Privacy-focused Dark Pool AMM Solidity Oct 2025 Private (5H, 5M, 27L)
ZK-Infrastructure Component Rust / ZK Nov 2025 Private (1H, 3M, 6L)
Payment Protocol Core Solidity Oct 2025 Private (1M, 9L)
Rust Cryptography Libraries BLS / crypto Sep 2025 Private (2M, 7L/I)
Privacy-preserving Payment System Solana Sep 2025 Private
Infrastructure ZK Verifier Rust Jun 2025 Private
L1/L2 Infrastructure Review ZK / Rust May 2025 Private
Core ZK-Infrastructure Audit Rust Apr 2025 Private

Public profiles

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