DeFi Protocol Security Audits
DeFi protocols are the highest-value targets in crypto. They combine complex financial logic with composable external dependencies, a surface area that generic smart contract audits don't fully cover. Our DeFi audits go beyond code review into economic attack modeling, oracle dependency analysis, and governance risk.
Why DeFi Protocols Need Specialized Audits
Crypto exploit losses totaled over $3.4 billion in 2025, with DeFi protocols accounting for a significant share. The pattern is consistent: code that passes a standard audit gets exploited through economic attack vectors: flash loan manipulation, oracle price feed attacks, governance hijacking, and composability exploits that emerge from interactions between protocols.
A standard smart contract audit checks for code-level bugs. A DeFi audit must also model economic incentives, validate oracle assumptions, stress-test liquidation mechanisms, and verify that governance can't be weaponized. The difference between the two is often the difference between a safe protocol and a drained one.
Our Methodology
Our DeFi audit methodology covers the full attack surface: code, economics, and external dependencies.
Protocol Architecture Review
Map the full system: contracts, oracles, governance, external integrations, upgrade paths, and fund flows. Identify every trust assumption.
Code-Level Audit
Manual review and automated analysis of all smart contracts. Standard vulnerability classes plus DeFi-specific patterns.
Economic Attack Modeling
Flash loan attack simulations, oracle manipulation scenarios, sandwich attack analysis, and liquidity-dependent exploit paths.
Oracle & Dependency Analysis
Evaluate price feed sources, staleness checks, fallback mechanisms, and manipulation resistance under adversarial conditions.
Governance & Access Control Review
Analyze admin privileges, timelock configurations, multisig thresholds, and governance attack vectors.
Report & Remediation
Findings rated by severity and exploitability. Re-audit of all fixes included.
Vulnerability Classes We Target
These are the vulnerability patterns most relevant to this audit type: the ones that cause real losses.
Flash Loan Attacks
Atomic transactions that borrow, manipulate, and profit in a single block. Target price calculations, voting power, and collateral valuations.
Oracle Manipulation
Price feed attacks via low-liquidity pools, TWAP manipulation, or stale data exploitation. Can trigger incorrect liquidations or mint unbacked assets.
Governance Hijacking
Acquiring voting power via flash loans or token accumulation to pass malicious proposals: fund drains, parameter changes, or contract upgrades.
Composability Exploits
Unexpected interactions between protocols: reentrancy via callback hooks, token standard edge cases, or cross-protocol state dependencies.
Liquidation Failures
Cascading liquidation scenarios that exceed available liquidity, leaving protocols with bad debt during market crashes.
Sandwich Attacks & MEV
Front-running user transactions to extract value from slippage. Particularly impactful on DEXs and lending liquidations.
Frequently Asked Questions
Related Services
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Formal Verification
Mathematical formal verification of smart contract properties. Prove critical invariants hold under all possible inputs, not just tested ones.
Related Research
Aave's $27M Liquidation Incident: How a Stale Oracle Parameter Wiped Out 34 Users
A desynchronized oracle parameter caused Aave to undervalue wstETH by 2.85%, triggering $27M in wrongful liquidations across 34 users. Full technical breakdown.
researchWhat $10.77 Billion in Hacks Reveals About Audit Effectiveness
Analysis of 100 largest protocol hacks totaling $10.77B. Only 20% were audited, but the ones that were share a pattern. Firm comparison, verified exploit data, pricing, and evaluation criteria.
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