DeFi Smart Contract Audit
Security review for financial logic where a small invariant mistake can become a full protocol loss.
DeFi audits require more than scanning for known Solidity patterns. CTDSEC reviews how accounting, liquidity, collateral, fees, governance, oracles, rewards, and external integrations behave when users act adversarially.
The review focuses on loss-of-funds risk, insolvency paths, griefing vectors, liquidation logic, pricing assumptions, state manipulation, flash-loan conditions, and integration failure modes.
What CTDSEC reviews
The review is tailored to the target chain and codebase, but the audit always starts with assets at risk, trust boundaries, and the concrete ways the protocol can fail.
Audit focus
DeFi Smart Contract Audit with manual review, tool-assisted coverage, and remediation support.
Audit Coverage
- AMM, DEX, lending, vault, staking, and reward accounting
- Oracle reads, stale prices, decimal handling, and circuit breakers
- Flash-loan and MEV-sensitive execution paths
- Liquidation, collateral, share, and exchange-rate math
- Protocol fees, treasury flows, emissions, and incentives
- Governance, pausing, upgrade, and emergency controls
Risk Areas
- Invariant breaks that drain pool or vault value
- Oracle manipulation and stale price assumptions
- Precision loss, rounding drift, and share accounting errors
- Reward distribution abuse
- Privileged actions that can bypass protocol safety
Deliverables
- Threat model for assets, actors, and trust boundaries
- Manual review of financial invariants
- Severity-ranked findings with exploit reasoning
- Remediation and regression-test recommendations
- Optional fix verification
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Compare coverage for your language, network, and protocol.
Prepare for Your Audit
Practical review questions and scoping guidance for your engineering team.
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Smart Contract Audit FAQ
Short answers for teams preparing an audit scope.
What does a defi audit include?
It includes scope confirmation, manual code review, tool-assisted analysis where useful, severity-ranked findings, remediation guidance, and a final report for the agreed disclosure model.
Can CTDSEC review fixes after the audit?
Yes. Fix verification can be included after the team remediates reported findings, using a new commit and a clear change summary.
How is a defi audit priced?
The quote depends on the agreed code scope, complexity, dependencies, and remediation review. Start with a project description; we can clarify repository access and timeline by email.
Get a smart contract audit quote
Tell us what you are building and when you plan to launch. Start with a short description; repository access and technical scope can follow.