Decentralized
Finance
Security

Decurity is a Tier-1 web3 security firm — smart contract audits, penetration testing and real-time monitoring, defending onchain systems since 2017.

REQUEST AN AUDITPUBLIC REPORTS150+ audits · $40B+ protected
CLIENTS & PARTNERS
1inchGearboxYearnThalesSymbiosisAzuroFluenceBebopSocketGivethClearpoolMellowArbitrumOptimismScrollMetisPancakeSwapHoldex
DEFIMON

Stream on-chain exploits the moment they happen

Defimon detects DeFi attacks across 8 networks and streams them as structured JSON over WebSocket, raw and LLM-confirmed.

<300ms
DETECTION
8
NETWORKS
24/7
FEED
WS · LIVE CAPTURE
wss://ws.defimon.xyz/ws/attacksLIVE
// incoming attack event · confirmed 287ms after tx
{
  "network": "mainnet",
  "severity": "CRITICAL",
  "attack_type": "profitable_call",
  "tx_hash": "0x074ec9…9aeeb1",
  "victim": "LendingPool v2",
  "balance_change_usd": -2190000.0,
  "confirmed_by_llm": true,
  "detected_in_ms": 287
}
SERVICES

Full-spectrum security for onchain systems

From a single smart contract audit to a continuous partnership over your entire SDLC.

NETWORKS /
EVMSOLANATONSTELLARSUI
01

Smart Contract Audit

EVM/Solidity, Solana/Rust, TON, Stellar and Sui/Move contracts, or any kind of dApp.

02

Security Advisory

Continuous consulting, Security SDLC practices, monitoring and incident response.

03

Custodial Security

Custody backends, key management, OPSEC, pentesting of dApps, L1s, bridges and CEX infra.

04

Risk Assessment

External protocol risk and viability assessment for funds during due diligence.

05

Invariant Development

Invariant and unit tests, on-chain fuzzing, e2e testing.

06

Security Monitoring

Hack attempts, suspicious transactions, dangerous actions, financial solvency.

CLIENTS & ECOSYSTEMS

Where ecosystems send their builders

Decurity is an approved security auditor for L1/L2 ecosystems: grant recipients and core infrastructure across these networks land on our desk.

Arbitrum
APPROVED AUDITOR
Optimism
APPROVED AUDITOR
Scroll
APPROVED AUDITOR
Metis
APPROVED AUDITOR
PancakeSwap
APPROVED AUDITOR
Holdex
APPROVED AUDITOR

We had a great experience working with Decurity. Both the quality and speed of their work are second to none. They've earned our trust through the insightful and non-obvious findings they delivered. Their communication was also clear, efficient, and genuinely pleasant throughout the entire process. That's why moving forward, we will continue to work with them on our major projects.

Gleb Alekseev
Product Owner, 1inch

Decurity reviewed Mellow Interoperability components twice in 2025 and we have been impressed with their work. In addition to technical expertise Decurity brought consistent engagement with our dev team. We value actionable feedback, and our tech team worked closely with Decurity researchers to address issues effectively. Their structured approach made a real impact on the quality of our code.

Nick Stoev
Core contributor, Mellow Protocol

I have worked with the Decurity team on the smart contract audits for Gearbox Protocol. They quickly identified potential attack vectors, thoroughly examined our complex codebase, and provided concise reports. I appreciate Omar and his responsiveness throughout the entire process. I highly recommend Decurity as reliable and trusted auditors.

Michael Lazarev
Co-Founder & CTO, Gearbox Protocol

Stableunit has worked with Decurity twice, and we continue to stay in touch. Both audits were efficient and technically insightful. As a technically mature team, we value deep, constructive feedback, and Decurity consistently delivers. They're methodical, responsive, and easy to work with throughout the entire process. Their input helped us strengthen our codebase where it truly mattered.

Alex Lebed
Architect, Stable Unit DAO

We worked with Decurity on a full security audit of our embedded wallets. The team was professional throughout — communicative, detail-oriented, and technically sharp. Their methodology was sound, and the final report was clear and actionable. We're confident in the results and fully recommend them as a trusted audit partner.

Domen Uršič
Co-Founder, Apillon

We've worked with Decurity several times already since 2023 — the audits are always smooth and professional. They guide you from the initial consultation all the way to the final retest once all findings are addressed. The level of expertise and fresh outside perspective stand out. A great team you can rely on while building in web3.

Vadim Zolotokrylin
CEO & Co-Founder, Holdex
ENGAGEMENT REQUEST

Secure your protocol with the team that breaks them

Tell us what you're building and we'll reply with a quote and timeline.

REQUEST FORM