What does an audit cover?

Reentrancy, access control, arithmetic, oracle and price manipulation, flash-loan exposure, front-running, denial of service, and business-logic flaws specific to your contracts. We map findings to the SWC Registry and explain the real-world impact of each.

How long does an audit take?

Most engagements run one to three weeks depending on lines of code and complexity. We scope and quote up front against your codebase, and we lock the commit hash being reviewed so the audit maps to exactly what you deploy.

Can you guarantee the contract is bug-free?

No honest auditor can. An audit substantially lowers risk by finding known and likely issues, but we recommend pairing it with a bug bounty, monitoring and staged rollouts for high-value contracts.

Contract audits

Blockchain Solutions

Smart contract security audits

Independent review that catches the bugs that drain funds before attackers do.

Our auditors review your contracts line by line against known vulnerability classes: reentrancy, access-control flaws, integer issues, oracle manipulation, flash-loan attacks and front-running. We combine manual review with Slither, Mythril and Foundry fuzzing, then deliver a severity-rated report with concrete fixes and a free re-test after you remediate. We follow SWC and OWASP smart contract guidance throughout.

Talk to an expert All Blockchain Solutions services

What you get

Included in this service

Manual line-by-line review

Senior auditors trace logic and value flows, not just tool output.

Automated analysis and fuzzing

Slither, Mythril and property-based fuzzing surface edge cases.

Severity-rated findings

Each issue rated critical to informational with a reproducible proof.

Free remediation re-test

We verify your fixes and confirm nothing new broke.

What you walk away with

Audit report with severity ratings and proofs of concept
Prioritised remediation guidance per finding
Re-test verification letter after fixes
Executive summary for non-technical stakeholders
Post-delivery support window
Deployment and on-chain verification

How we engage

A clear path from problem to outcome

Discovery and protocol selection

We map your use case, trust model and stakeholders, then choose the right chain and consensus: public EVM (Ethereum, Polygon, Base, Arbitrum), a permissioned ledger (Hyperledger Fabric, Quorum), or a Layer 2. We confirm whether a blockchain is actually warranted before any code is written.

Architecture and threat modelling

We design the on-chain and off-chain split, data and key-management model, gas and fee strategy, and upgrade path. Every contract is threat-modelled against known attack classes (reentrancy, access control, oracle manipulation) so security is built in, not bolted on.

Build, test and audit

We develop in Solidity, Vyper or chaincode with full unit, fork and invariant test coverage using Foundry or Hardhat. Contracts go through static analysis (Slither), fuzzing and an internal security review before any deployment to a public or production network.

Deploy, verify and operate

We deploy with reproducible scripts, verify source on the explorer, and hand over runbooks, monitoring and indexing (subgraphs, event listeners). Optional managed operations cover key rotation, upgrades and incident response after go-live.

Frequently asked questions

Build it right.
Secure it for good.

Tell us what you're building or securing. We'll bring the engineers, the security team and the trainers, plus a clear, costed plan to get you there.

Contact UsExplore Services

AI-powered cybersecurity 24/7 expert support Trusted across industries

Join our newsletter

Be up to date with everything about NUEXUS

By subscribing you agree with our Privacy Policy