Founder of Exvul web3 security, Nolan has 12 years of experience in cyber security, having worked as an expert at Huawei ,360 and as a co-founder of numencyber.

Taiger is an early blockchain security researcher. He has worked as a blockchain researcher in many well-known Web3 security companies. He has audited a large number of blockchain projects and discovered many medium- and high-risk vulnerabilities.

He is interested and familiar with code audit,always try to learn new things. He has audited many projects and loves competitive stuff.

He has audit projects including Nervos, Cosmos, and AVAX, successfully identifying vulnerabilities across diverse blockchain modules. His contributions have been acknowledged with a $50,000 bug bounty, His work in analyzing source code verification services already published at NDSS

kevin has 10 years of network security experience, focusing on penetration testing, red team attack and vulnerability mining field; in the field of penetration attack and defense, after legal authorization, invasion simulation to show the harm and give solutions; also focus on business logic security, found a number of exchanges funds arbitrarily manipulated, private key leakage and other issues. Also in the continuous mining of open source products in the security holes, access to apache, spring thanks and 360, Doo Elephant Technology’s vulnerability bonus.

Norman holds a Bachelor’s in Mathematics from the University of Wisconsin,found many bugs at Code4rena and Immunefi,Now as Strategy and Operations Lead at ExVul, Norman drives innovation in blockchain security.

UPON is a seasoned enthusiast focused on Web3 security, actively engaged across multiple blockchain ecosystems including Solidity, Move, Fuel, and Starknet. He not only actively participates in the community contributions of these platforms’ open-source projects but also possesses significant code auditing experience. He has successfully audited several blockchain projects.

He is a PhD at NTU and has conducted comprehensive audits of numerous cryptocurrency wallets, exchanges, and decentralized applications (DApps). Through his meticulous research, he has identified several critical vulnerabilities, including security flaws in blockchain explorers, token anti-money laundering (AML) systems, and cross-chain bridges. His discoveries have led to recognition and bounty rewards from prominent cryptocurrency platforms like OKX and Coinbase

Eason is a blockchain security engineer deeply entrenched in Ethereum, Solana, and Bitcoin ecosystems. As a former risk control developer and threat intelligence analyst at PeckShield and ImToken, he engineered safeguards against on-chain exploits. Through active participation in security competitions and real-time tracking of emerging attack vectors, he devises adaptive defense strategies for decentralized protocols, combining hands-on ecosystem expertise with structured threat mitigation frameworks.

With 17 years of experience in information security, Chris is a cybersecurity patent inventor, OWASP speaker, founder of multiple information security communities, contributors of open source projects and a recognized CVE vulnerability discoverer. His areas of expertise include vulnerability research, application security, penetration testing, red team/blue team operations. His professional experience includes key security technical expert roles at major technology companies including Amazon, Baidu, Sina, and JD, where he worked as an Information Security Architect and Technical Lead for offensive security and application security teams.