Halborn
Halborn is an elite blockchain security and risk solutions firm founded in 2019 by serial...

Sec3 is a full-stack blockchain security firm providing bespoke audits and cutting-edge security software to Web3 projects. Founded in 2022, the company combines leading academic expertise, industrial Web2 cybersecurity experience, and CTF-winning skills to empower protocols to scale securely.
Sec3 delivers comprehensive security solutions across the entire Web3 development lifecycle. Their smart contract auditing services cover the full spectrum from L1 infrastructure to L2 applications, DeFi to GameFi, supporting EVM, Rust, Solana, and zero-knowledge protocols. The company offers both traditional one-time audits and innovative incremental manual audits that embed security throughout the development process.
On the software side, Sec3 provides three flagship products: X-Ray, an automated static analysis tool that scans smart contracts for vulnerabilities before deployment; WatchTower, a real-time monitoring platform that detects suspicious on-chain activity and provides 24/7 protection with CircuitBreaker emergency response; and OwLLM, the first open-source Web3-native Large Language Model trained exclusively on blockchain data.
Sec3's team comprises some of the sharpest white hats in Web3, with co-founders bringing exceptional credentials: Dr. Nick Zheng (CTO) spent eight years at IBM Research working on program analysis and formal verification; Dr. Xinyu Xing (CSO and Chief AI Scientist) is an Associate Professor at Northwestern University specializing in OS/AI/Web3 security; and Dr. Tao Bao (Head of Engineering) served as a Tech Lead at Google for nearly nine years across Android and Google Cloud platforms. This combination of academic rigor and industry experience enables Sec3 to deliver advanced engineering solutions including formal verification using mathematical proofs of smart contract correctness.
Sec3 has secured protocols for leading Web3 projects including Solana, Wormhole, Kamino, Metaplex, Zeus Network, and the Helium Foundation. Their track record demonstrates expertise across diverse use cases from DeFi protocols to infrastructure projects, with clients praising their commitment to clear communication, practical risk mitigation recommendations, and 120% execution to deliver results.
Sec3 stands out through its full-stack approach to Web3 security - recognizing that protection extends beyond smart contract audits to encompass holistic defense strategies. The firm forges long-term keystone partnerships with clients serious about protecting their users, working around client schedules and providing continuous support as protocols evolve post-launch. Their advanced engineering capabilities in machine learning and automation, exemplified by OwLLM, position them at the forefront of Web3 security innovation.
WatchTower is Sec3's real-time monitoring platform that provides 24/7 automated...
OwLLM is the first-ever open-source Web3-native Large Language Model developed by Sec3,...
Sec3 provides comprehensive smart contract auditing services to fortify protocols and...
Sec3 offers formal verification services that use advanced mathematical methods to prove...
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Leave a ReviewCollege Station, Texas, United States
This partner has been verified by Web3Connect on 29 Jan 2026
Founded
2022
Team Size
41-49 employees
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