Code is law.
Bugs are exploits.
Web3 exploits are irreversible. A single smart contract vulnerability can drain a protocol in minutes. We audit contracts, assess DeFi protocols, and investigate on-chain incidents, before and after deployment.
Web3 security, end to end
Smart Contract Security Auditing
Manual and automated auditing of smart contracts across Ethereum, Solana, and other chains. We identify reentrancy vulnerabilities, integer overflows, access control flaws, and logic errors before deployment: not after a $50m exploit.
DeFi Protocol Security
DeFi protocols face unique attack surfaces: flash loan attacks, oracle manipulation, liquidity pool exploits, and governance attacks. We assess DeFi protocols end to end and provide actionable remediation, not just a list of findings.
Wallet and Key Management Security
Private key compromise is irreversible. We assess wallet infrastructure, key management processes, hardware security module (HSM) configurations, and multi-signature setups to ensure your assets are protected at the cryptographic layer.
Blockchain Forensics and Incident Response
When an exploit happens, speed matters. We conduct blockchain forensic investigations, trace stolen funds across chains, identify attacker wallets, and support regulatory reporting and legal proceedings.
NFT and Token Security
NFT contracts, token launches, and marketplace integrations carry significant security risk. We audit NFT smart contracts, assess token economic models for manipulation risk, and review marketplace integrations for vulnerabilities.
Web3 Infrastructure Security
The off-chain infrastructure supporting Web3 applications is as important as the contracts. We assess RPC node security, API key management, frontend injection risks, and the full Web3 application stack.
Scope. Audit. Remediate. Verify.
Scope
We review your codebase, architecture, and deployment environment to define the audit scope and identify the highest-risk areas.
Audit
Manual review combined with automated tooling. Every finding is verified and classified by severity with a proof-of-concept where applicable.
Remediate
We work with your engineering team to fix the vulnerabilities. We do not hand over a PDF and disappear.
Verify
Post-fix verification confirms all critical and high findings are resolved before deployment or publication of the audit report.
Connected capabilities
Launching a protocol or contract?
Get it audited before it goes live. We scope Web3 security engagements quickly and work to your deployment timeline.
Related case studies
Enquire about
Web3 Security
Tell us about your situation and we will have a scoped proposal back within 48 hours. Fixed pricing, no vague retainers.
Frequently asked questions
What does Netru's Web3 & Smart Contract Security service include?
Netru scopes Web3 & Smart Contract Security to your specific environment and delivers it hands-on: we identify the gaps, implement the controls directly rather than handing over a list of recommendations, and validate that they work. Security is not a project with an end date, we monitor continuously and keep the controls effective.
Who carries out Web3 & Smart Contract Security at Netru?
You work directly with a senior security engineer or compliance lead, no sales pipeline and no account managers between you and the people doing the work.
How quickly can Netru start on Web3 & Smart Contract Security?
We respond to every enquiry within one business day and return a scoped proposal with fixed pricing within 48 hours. Engagements start within 72 hours of sign-off.