Ensuring a Secure Web3 World
Full-stack blockchain security provider. Elite auditors protecting billions in on-chain assets through comprehensive audits, penetration testing, and security research.
Assets secured
Vulnerabilities found
Trusted By
Leading Web3 Projects
What We Do
Security Services
End-to-end security solutions for protocols, chains, and infrastructure
Smart Contract Audit
Comprehensive security audits for EVM, Solana, Sui, Aptos, and more.
Chain Audit
L1/L2 protocol security from consensus to VM implementation.
Wallet Audit
Browser extensions, mobile wallets, and custody solutions.
Web3 Penetration Testing
Infrastructure, API, and application security testing.
Track Record
Security Metrics
Customer Satisfaction
On-Chain Security
Vulnerabilities Patched
Detection Accuracy
Testimonials
What Our Clients Say
Our Team
We Are White Hat Hackers
Veteran security researchers with proven track records in blockchain and Web3 security. Our team has secured billions in TVL and discovered critical vulnerabilities across major protocols.
Nolan
Founder
Founder of ExVul. 12 years in cybersecurity. Former expert at Huawei, 360, and co-founder of Numencyber.
Taiger
Security Auditor
Early blockchain security researcher. Audited numerous projects and discovered many critical vulnerabilities.
Lucas
Security Researcher
Audited Nervos, Cosmos, AVAX. $50,000 bug bounty. Published research at NDSS.
Kevin
Penetration Expert
10 years of network security. Specializes in red team attacks and vulnerability mining.
0xNorman
Security Researcher
Math degree from UW. Active on Code4rena and Immunefi. Strategy lead at ExVul.
yixuan
Security Auditor
PhD at NTU. Audited wallets, exchanges, DApps. Recognized by OKX and Coinbase.
From the blog
View allDecember 16, 2025
Deep Dive: The yETH Weighted StableSwap Exploit - Part 1
An in-depth analysis of the yETH Weighted StableSwap exploit, exploring how the transition from Curve's invariant to a weighted model introduced critical vulnerabilities through product-term collapse.
March 2025
HackQuest Collaboration
We're excited to announce that ExVul has officially partnered with HackQuest to advance Web3 security education and training across the ecosystem.
February 2025
ExVul Partners with Bitget Exchange
ExVul is proud to announce our strategic partnership with Bitget, one of the world's leading cryptocurrency exchanges.
Get Started
Secure Your Protocol Today
Don't leave your protocol unprotected — reach out to our team of experts to start discussing a security audit.
Assets secured
Vulnerabilities found