Smart Contract Security Auditing

Sentnl delivers comprehensive smart contract security audits covering manual line-by-line code review, automated static analysis, dynamic testing, and advanced fuzzing techniques — providing pre-deployment security certification for any blockchain project.

Audit Coverage

Sentnl's security auditing spans the full range of smart contract environments:

• Standard Smart Contract Audits – Structured five-stage review process: scoping and preparation, line-by-line code review, security assessment, findings report, and remediation with deployment certification.
• EVM-Specific Audits – Deep-dive review tailored for Ethereum and EVM-compatible chains (Polygon, BNB Chain, Arbitrum, Optimism, Base, Avalanche), including gas optimisation and EVM execution analysis.
• Blockchain Protocol Audits – Infrastructure-layer review of core protocol code and consensus mechanisms for L1 and L2 networks.

Advanced Testing Techniques

• Fuzzing – Industry-recognised as a differentiator for Sentnl, this technique subjects contracts to random, unexpected, and invalid inputs to uncover hidden edge-case vulnerabilities that manual and standard automated testing miss. Covers both EVM and non-EVM environments.
• Advanced Penetration Testing – Simulated cyberattack scenarios replicating real-world targeted attack methods beyond standard audit coverage, delivering actionable findings by severity.

Findings and Certification

All audits conclude with a comprehensive report categorising vulnerabilities by severity, remediation guidance, and a final re-evaluation. Audit certificates are issued on GitHub upon completion. Sentnl has a seven-year track record with zero post-audit exploits.

Target Clients

DeFi protocols, NFT platforms, DAOs, cross-chain bridges, token contracts, Layer 1 and Layer 2 protocol teams, exchanges, wallets, and any Web3 project requiring security assurance prior to deployment.