Decurity

Decurity (Decentralized Security LLC-FZ) is a tier-1 Web3 security audit firm founded by elite ethical hackers with expertise in blockchain and smart contract security. Operating since 2017 out of Dubai, UAE, Decurity has established itself as one of the most technically rigorous security firms in the decentralized finance ecosystem. The team consists of multiple world CTF (Capture The Flag) hacking champions and top-50 globally ranked hackers per HackerOne, bringing unparalleled offensive security expertise to the defense of blockchain protocols.

Core Products/Services

Decurity's service portfolio spans the full spectrum of Web3 security needs:

Smart Contract Audit is the flagship service, covering Ethereum Solidity, Solana Rust, and Aptos Move smart contracts as well as decentralized applications (dApps). Engagements focus on identifying critical vulnerabilities before deployment, with a track record of discovering critical issues in the majority of audits.

Security Advisory provides comprehensive continuous security consulting, implementation of Security SDLC (Software Development Life Cycle) practices, monitoring, and incident response. This ongoing engagement model helps protocols maintain security posture over time rather than relying on point-in-time audits alone.

Custodial Security addresses OPSEC (operational security), key management, multisig configuration, and penetration testing for blockchain infrastructure. This service targets organizations that hold significant digital assets and need robust custody security practices.

Risk Assessment delivers external risk evaluation and viability assessments tailored for traders, private equity firms, and venture capital funds investing in or operating within the DeFi space. This offering helps institutional participants understand the security posture and risk profile of protocols they interact with.

Invariant Development involves the identification and development of protocol invariants, fuzzing campaigns, and end-to-end testing to ensure smart contract logic behaves as intended under all edge cases and adversarial conditions.

Security Monitoring provides real-time on-chain monitoring of smart contracts for attacks, suspicious transactions, and financial solvency anomalies, enabling rapid incident response.

Key Strengths

Decurity's competitive differentiation lies in the caliber of its security researchers. The team placed 2nd at Paradigm CTF 2022 and 2nd at OpenZeppelin CTF 2024, demonstrating elite-level smart contract exploitation capabilities. In 2025, Decurity co-hosted Remedy CTF with over 2,000 participants, further cementing their position as community leaders in Web3 security research.

The firm was selected by the Arbitrum Foundation for deployment of a $15M ecosystem grant, reflecting institutional trust in their judgment and technical expertise. Their approach combines offensive security thinking with defensive recommendations, ensuring audits go beyond checklist compliance to surface genuine attack vectors.

Notable Clients/Projects

Decurity has audited and advised leading DeFi protocols including 1inch, Yearn Finance, Gearbox Protocol, Compound, Optimism, Scroll, Metis, PancakeSwap, Mellow Protocol, GIVEth, Stableunit, Apillon, and Holdex. The breadth of clients spans major L1/L2 networks, DEXes, yield protocols, and lending platforms.

Why Choose Decurity

For Web3 protocols and organizations seeking security assurance, Decurity offers rare expertise combining deep offensive security research skills with hands-on blockchain protocol knowledge. Their CTF championship pedigree means their auditors actively seek out novel attack vectors rather than relying on known vulnerability patterns. With engagements available across Ethereum, Solana, and Aptos ecosystems, and a continuous advisory model for ongoing security, Decurity provides both one-time audit assurance and long-term security partnership.