Smart Contract Security
Audits
Trusted smart contract audit company that's secured 500+ protocols with zero post-audit exploits. Our team combines automated static analysis with expert manual code review to identify vulnerabilities before deployment, protecting billions in total value locked across DeFi, NFT, and enterprise blockchain projects.
50+ Projects
50+ smart contracts audited for security
$10B+ TVL Secured
No exploits after audits securing $10B+ in value
1–4 Week Turnaround
Quick, in-depth audits with no quality loss
Industry Recognition
Trusted researchers with proven expertise
What Is a Smart Contract Audit?
A smart contract audit is a systematic, line-by-line examination of blockchain code designed to find security vulnerabilities, logic errors, and gas inefficiencies before deployment. Because smart contracts are immutable once deployed and often control real financial assets, even a small flaw can lead to permanent fund loss. In practice, auditors combine automated static analysis tools like Slither and Mythril with manual expert review to catch issues that scanners miss — reentrancy paths, access control gaps, integer overflow edge cases, and front-running vulnerabilities. The process typically produces a severity-rated audit report with proof-of-concept exploits and step-by-step remediation guidance. Worth noting: an audit isn't a one-time checkbox. As your protocol evolves through upgrades and new integrations, re-audits and continuous monitoring become just as important as the initial review. The OWASP Smart Contract Top 10 provides a useful baseline for the vulnerability categories every audit should cover, while the Ethereum Foundation's security guidelines outline broader best practices for writing secure Solidity.
Full-Spectrum Blockchain Security Services
Protect your blockchain projects with thorough smart contract audit services, penetration testing, and continuous monitoring, from code review to vulnerability disclosure
Smart Contract Security Audits
Line-by-line smart contract security audits for protocols on Ethereum, Polygon, BSC, Arbitrum, and other chains. We run Slither and Mythril alongside manual review to catch reentrancy bugs, access control flaws, and logic errors before they reach mainnet. Each finding gets a CVE-style severity rating and a clear remediation path in the final <a href='/security-audits'>audit report</a>.
Penetration Testing
Targeted penetration testing that simulates real attacker behavior against your <a href='/smart-contract-development'>smart contracts</a> and infrastructure. We probe for flash loan attack paths, privilege escalation, front-running vectors, and state manipulation to validate how your protocol holds under hostile conditions.
Code Review & Analysis
Senior auditors walk through every function path checking for unchecked return values, missing input validation, and business logic errors. We pair this with Slither's detectors and custom Echidna fuzzing tests to surface subtle edge cases that automated scanners can't catch on their own.
Runtime Security Monitoring
On-chain monitoring that watches your live contracts for suspicious transactions, abnormal fund flows, and governance parameter changes. Alerts fire within seconds so your team can pause or respond before damage spreads across the protocol.
Security Consulting
Hands-on guidance for teams building their internal security posture. We help define threat models, set up CI/CD security gates with Slither and MythX, structure access controls, and train developers to write audit-ready <a href='/solidity-programming'>Solidity</a> from day one.
Compliance & Certification
We prepare the audit artifacts, documentation packages, and control evidence needed for regulatory compliance and security certifications. Our reports follow established vulnerability disclosure practices and are formatted for investor due diligence, insurance underwriters, and public disclosure.
Critical Security Risks in Blockchain Development
Address fundamental security vulnerabilities and protect your protocols from costly exploits with professional smart contract audit services and structured vulnerability disclosure
Smart Contract Vulnerabilities
Code-level security flaws
Reentrancy bugs, unchecked external calls, and missing access modifiers remain the most common causes of fund loss. A single unguarded withdraw function cost one DeFi protocol $35M. We use Slither detectors and manual trace analysis to catch these before deployment.
Economic Attack Vectors
Financial exploitation risks
Flash loan exploits, oracle price manipulation, and MEV sandwich attacks target protocol economics rather than code bugs. We model token flows, simulate multi-block attacks, and stress-test reward math to find extraction paths before adversaries do.
Multi-Signature & Governance Risks
Centralization vulnerabilities
Weak multi-sig thresholds, unprotected governance proposals, and admin keys stored in single wallets create centralization risks. We review timelock configurations, quorum logic, and key management practices to prevent hostile takeovers and unauthorized parameter changes.
Cross-Chain Bridge Exploits
Interoperability security gaps
Bridge protocols carry outsized risk because a single validation flaw can drain funds across multiple chains simultaneously. We audit message relayers, signature verification, and state proofs to ensure cross-chain transfers settle only when both sides agree.
Upgradeability & Proxy Risks
Contract upgrade vulnerabilities
Storage slot collisions, uninitialized implementation contracts, and missing upgrade authorization checks are common proxy pitfalls. We verify ERC-1967 compliance, test upgrade paths against previous storage layouts, and confirm that only authorized roles can trigger upgrades.
Integration & Composability Issues
Protocol interaction risks
DeFi composability means your contract depends on external protocol behavior that can change without warning. We trace call chains through routers, lending pools, and oracles to ensure your integration handles reverts, reentrancy, and stale data gracefully.
Smart Contract Audit Cost Breakdown
Pricing depends on codebase size, number of contracts, and protocol complexity. Here's what to expect — no hidden fees, no surprises after the scoping call.
Token / NFT Contract
Standard ERC-20, ERC-721, or ERC-1155 contracts with straightforward logic. Includes automated scanning with Slither and Mythril plus a full manual code review and remediation verification.
Get in touchDeFi Protocol (Mid-Complexity)
Lending pools, AMMs, staking, or yield protocols with multiple contract interactions. Covers economic attack modeling, flash loan simulation, oracle manipulation testing, and formal verification of critical paths.
Get in touchEnterprise / Multi-Module System
Large-scale protocols with governance, cross-chain bridges, proxy upgrades, and complex composability. Includes full penetration testing, fuzzing campaigns with Echidna, and a comprehensive audit report with executive summary.
Get in touchAdvanced Security Analysis Tools & Frameworks
Battle-tested security tools and analysis frameworks we rely on daily for deep smart contract vulnerability detection and blockchain security auditing
Mythril
Security Analysis
Slither
Static Analysis
Echidna
Property Testing
Manticore
Symbolic Execution
Securify
Vulnerability Scanner
Oyente
Smart Contract Analyzer
SmartCheck
Pattern Detection
Solhint
Code Quality
MythX
Security Platform
Consensys Diligence
Analysis Tools
Trail of Bits
Security Suite
OpenZeppelin
Security Standards
Our Security Audit Methodology
Proven 5-phase smart contract audit process combining automated static analysis with expert manual review for thorough vulnerability detection and remediation
Initial Assessment
Every engagement starts with a full review of your codebase scope, contract architecture, and external dependencies to map the attack surface. This phase produces a threat model, risk priority list, and a clear audit timeline your team can plan around.
Automated Analysis
Slither, Mythril, and Echidna run against every contract to flag known vulnerability patterns, detect reentrancy paths, and fuzz inputs. Results feed directly into the manual review phase so auditors know exactly where to focus.
Manual Code Review
Two senior auditors independently trace every execution path, checking business logic, privilege boundaries, and token flow math. They cross-reference findings to eliminate false positives and confirm each issue with a working proof of concept.
Penetration Testing
Every confirmed vulnerability gets a working exploit. The team simulates flash loan sequences and multi-step attacks on a forked mainnet, measuring actual financial impact so severity ratings reflect real-world risk.
Report & Remediation
You receive a full security report with severity-rated findings, proof-of-concept exploits, and step-by-step fix guidance. After your team applies patches, we re-verify every finding and issue a clean remediation confirmation.
Why Teams Pick Us Over Other Auditors
Trusted by top protocols worldwide to secure billions in total value locked. Here's why teams choose our smart contract audit services over the competition.
Industry Leading Expertise
Our auditors have deep backgrounds in formal verification, EVM internals, and protocol economics. They've reported critical CVE-level vulnerabilities in production <a href='/defi-platforms'>DeFi protocols</a>, contributed to Solidity compiler security, and published original research on flash loan attack vectors. Every engagement is staffed by at least two senior researchers who cross-review each other's findings to eliminate blind spots.
Multi-Chain Coverage
We audit <a href='/solidity-programming'>Solidity</a> on Ethereum, Polygon, BSC, Arbitrum, and Optimism, Rust on <a href='/solana-development'>Solana</a> and Substrate, and Move on Aptos and Sui. Each chain has its own gas model, storage layout, and execution quirks. Our toolchains are tuned per ecosystem so you get the same depth of analysis whether you deploy on an L1, an L2 rollup, or an app-chain.
Rapid Turnaround
Most single-contract audits ship in five to seven business days; multi-contract protocols wrap within three to four weeks. We run automated tools like Slither, Mythril, and Echidna in parallel with manual review so neither phase blocks the other. You get a locked timeline after the scoping call, and we hold to it because missed launch windows cost real money.
Proven Track Record
Across 500+ completed audits, none of our clients have suffered an exploit on code we reviewed. That includes lending protocols, AMMs, yield aggregators, and cross-chain bridges collectively securing over $10B in TVL. We measure ourselves by what doesn't happen after we sign off, and that track record is the clearest proof that our process works.
Dedicated Support
You get a named lead auditor who is available on Slack or Telegram throughout the engagement. After the report lands, we walk your developers through every finding, answer questions about fix approaches, and re-verify patches at no extra cost. If you need help months later with an upgrade audit or a new module, the same team picks it back up with full context.
Actionable Reports
Every audit report includes an executive summary for non-technical stakeholders, a detailed technical breakdown with CVE-style severity ratings from critical to informational, and working proof-of-concept exploits where applicable. Remediation guidance is specific enough for your developers to start fixing issues immediately. Reports follow responsible vulnerability disclosure practices and are formatted for investor due diligence, insurance providers, and public disclosure.
From the Audit Bench: Vulnerabilities We've Caught
Technical breakdowns of real vulnerabilities we've found during audits and the fixes that stopped them from reaching production.
Protect Your Protocol with Security Audits
500+ smart contract audits completed, $10B+ TVL protected, zero exploits post-audit. Get expert blockchain security for your protocol.
Smart Contract Audit FAQ
Get answers to common questions about blockchain security audits and our auditing services
Start Your Smart Contract Audit Today
Ship your contracts knowing every function path has been tested, every edge case fuzzed, and every finding resolved. Book a free scoping call and get a fixed-price quote within 48 hours.