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Frank Castle
Available for Audits · Q1 2026

Frank Castle

@0xcastle_chain

Rust & Solana smart contract security researcher. I find the vulnerabilities that drain protocols before attackers do. Trusted by Pashov Audit Group, Spearbit, Cantina, Shieldify, Zenith, and BailSec.

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Rust Audits
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Solana Audits
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Criticals & Highs
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Private Audits
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Protocols Secured

Recent Private Audits

Full portfolio on GitHub → github.com/Frankcastleauditor/public-audits

# Protocol Ecosystem Findings Provider Report
34 pAMM by Quantum Labs Rust · Solana (pinocchio) 1C 1H 2M 5L Solo NDA
33 Coalesce Finance Rust · Solana 3H 14M 15L Pashov Audit Group PDF ↗
32 Meteora Rust · Solana 1M 5L Pashov Audit Group PDF ↗
31 Weed Addicted Rust · Solana 3 Criticals Pashov Audit Group Upcoming
30 BitCorn × LayerZero Rust · Solana — Spearbit · Cantina —
29 Pump (NDA) Rust · Solana NDA Pashov Audit Group NDA
27 Layer N Rust · Solana 1C 1M 4L Cantina · Spearbit PDF ↗
26 BTRFI Rust · Solana 5C 2H 5M 13L Pashov Audit Group PDF ↗
19 Perena Rust · Solana 4C 3H 4M 3L Spearbit · Cantina PDF ↗
17 ORO Rust · Solana 11C 1H 5M 3L Spearbit · Cantina PDF ↗
Show all 34 audits →

Competition Results

🥈
2nd Place
HydraDX Omnipool
Code4rena · Rust · Polkadot
$21,555 USDC
1 High, 2 Mediums (1 solo)
View Contest ↗
🏅
4th Place
Centrifuge
Cantina · Rust
$5,300 USDC
1 High, 4 Mediums
View Contest ↗
📋
11th Place
Centrifuge
Code4rena · Rust
$1,155 USDC
2 Mediums
View Contest ↗

Schedule a Security Review Call

30-minute call to scope your audit, discuss timelines, and answer any questions.

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Prefer async? Reach out directly on Telegram @castle_chain or X @0xcastle_chain

Request an Audit

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