DeFi Protocol Smart Contract Audits

DeFi protocols carry the highest-value attack surface in smart contract security — lending markets, AMMs, and yield vaults hold and move real capital, and their exploits are consistently the largest by dollar value. Firepan's audit targets the specific attack classes that have drained real DeFi protocols, not just generic Solidity anti-patterns.

What a DeFi Protocol Audit Covers

• Oracle manipulation — price feed manipulation via low-liquidity pools, flash-loan-funded spot price attacks, and stale or manipulable price sources (see oracle manipulation and price manipulation)
• Flash loan attack surface — any logic that assumes atomic, single-transaction pricing without accounting for flash-loan-funded manipulation (see flash loan attack)
• Reentrancy — cross-function and cross-contract reentrancy in withdrawal, liquidation, and reward-claim paths (see reentrancy)
• Governance attack surface — flash-loan-funded voting power, timelock bypass, and proposal execution risk (see governance attack)
• Liquidation and interest-rate logic — edge cases in collateral valuation, liquidation incentive design, and interest accrual that can be gamed
• Economic invariant violations — protocol solvency and accounting invariants that should be explicitly specified and tested with an appropriate property-testing harness

How Firepan Audits a DeFi Protocol

DeFi protocols are where repository context matters most. Firepan's deterministic detectors surface structural signals quickly; a deep audit maps the scoped code, generates and tests security hypotheses, and uses best-effort Slither output as corroborating evidence when the target compiles. HOUND then curates the evidence with business-logic context instead of presenting raw tool output as a verdict.

Because DeFi protocols ship frequent parameter changes and upgrades, this is also the vertical where continuous auditing matters most: a protocol's risk profile changes with every governance vote, every new market listing, and every oracle configuration change — not just at initial launch.

Frequently Asked Questions

Q: What's the biggest risk category in DeFi protocol audits?

A: These attacks depend on economic assumptions and integration behavior, not just syntax. Firepan's deep audit investigates repository context and security hypotheses; teams should also maintain explicit invariant tests and validate market assumptions independently.

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Q: Can an audit catch every economic attack vector in a DeFi protocol?

A: No. Novel mechanisms create new attack surfaces, and no automated or human review guarantees complete detection. Firepan combines deterministic signals with deeper repository-context analysis; repeat checks occur only for repositories and events that are actually connected or manually submitted.

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Q: Should a DeFi protocol get a manual audit, an AI audit, or both?

A: They provide different evidence. A named human review can supply scoped judgment and an external report; Firepan supplies fast triage and repeatable repository analysis. High-value protocols should choose additional testing, review, bounties, and operational monitoring based on their threat model.

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Q: How often should a live DeFi protocol be re-audited?

A: Any material code, oracle, market, role, or integration change can alter risk. Configure repository-triggered checks where available, review the resulting evidence, and schedule new scoped human review when the change or value at risk warrants it.

Run a free public-repository surface scan on your DeFi protocol.