Smart Contract Security
Secure Your
Smart Contract Auditing
Comprehensive security audits for DeFi protocols, NFT projects, and Web3 applications. Our expert auditors combine penetration testing with deep manual review to protect your users and assets.
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Supported Platforms
Ethereum
Solana
Polygon
Arbitrum
BSC
Avalanche
Audit Complete
DeFi Protocol v2
3 Criticals Found
Reentrancy detected
12,450 LOC
Solidity analyzed
femtosec.io/smart-contract-audit
$2B+
Assets Secured
200+
Protocols Audited
500+
Vulnerabilities Found
0
Post-Audit Exploits
Vulnerability Coverage
We Find What Others Miss
Comprehensive coverage of all major smart contract vulnerability classes
Reentrancy Attacks
Recursive call exploitation allowing unauthorized fund drainage before state updates
Access Control Flaws
Missing or incorrect access modifiers exposing privileged functions to attackers
Integer Overflow/Underflow
Arithmetic operations exceeding type limits causing unexpected token minting
Flash Loan Attacks
Exploiting DeFi protocols through uncollateralized loans for price manipulation
Oracle Manipulation
Attacking price feeds to exploit liquidation mechanics or swap rates
Front-Running (MEV)
Transaction ordering exploitation by miners/validators for profit extraction
Logic Errors
Flawed business logic enabling unintended protocol behavior or fund theft
Upgradability Issues
Proxy pattern vulnerabilities, storage collisions, and initialization flaws
LIVE AUDIT PROCESS
Our Audit Process in Action
A rigorous multi-phase approach combining attack surface management with automated tools and expert manual review.
Vulnerability Scanner
Real-time threat detection
Reentrancy
Recursive call exploits
Critical
// Smart Contract Analysis Window
function withdraw() external {
uint256 bal = balances[msg.sender];
// ⚠️ VULNERABILITY: Check-Effects-Interaction
(bool success,) = msg.sender.call{value: bal}("");
// Fix: Move state update before external call
balances[msg.sender] = 0;
}
Audit Workflow
End-to-end security review
PROGRESS STATUS1 / 6
Code Submission
Step 1
Repository Access
Submit your smart contracts via GitHub, GitLab, or direct upload for comprehensive review
Solidity/Vyper/Rust support
Full repo access
Version tracking
Secure Connection Established • Monitoring Active
Languages We Audit
Expert coverage across all major smart contract languages
Solidity
EVM-compatible chains
Rust
Solana, NEAR, Cosmos
Vyper
Python-like EVM
Move
Aptos, Sui
Audit Methodology
Our Proven Process
A rigorous multi-phase approach combining automated tools with expert manual review
Day 1-2
Scoping & Planning
Define audit scope, understand protocol architecture, identify critical components and integrations
1
Day 2-3
Automated Analysis
Run Slither, Mythril, Echidna fuzzing, and custom static analyzers to identify common patterns
2
Day 3-10
Manual Code Review
Line-by-line expert review focusing on business logic, access control, and economic attacks
3
Day 10-12
Exploit Development
Create proof-of-concept exploits for identified vulnerabilities to demonstrate impact
4
Day 12-14
Report & Remediation
Deliver comprehensive report with findings, fix recommendations, and verification support
5
What You Get
Audit Deliverables
Everything you need to secure your protocol and build user trust
Comprehensive Audit Report
Detailed PDF report with executive summary, methodology, findings by severity, and remediation guidance
Proof-of-Concept Exploits
Working exploit code for critical/high findings to demonstrate real-world attack feasibility
Fix Verification
Re-audit of implemented fixes to ensure vulnerabilities are properly remediated
Audit Certificate NFT
On-chain verification of completed audit with public report for community trust
Frequently Asked Questions
Common questions about our smart contract auditing services
What is a smart contract audit?
What is a smart contract audit?
A smart contract audit is a systematic review of blockchain-based code to identify vulnerabilities, logic flaws, or security risks before deployment. It ensures that contracts function as intended and are resistant to exploits.
General
Why are smart contract audits important?
Why are smart contract audits important?
Smart contracts handle significant financial transactions in DeFi, NFT projects and Web3 applications. A single flaw can lead to financial loss, exploits, or reputational damage. Audits help prevent these risks.
Security
What does a smart contract audit include?
What does a smart contract audit include?
Audits include code review, security testing, functional verification, automated vulnerability scanning, and manual expert analysis. The goal is to detect logic errors, reentrancy attacks, access control issues and other critical vulnerabilities.
Process
How is a smart contract audit conducted?
How is a smart contract audit conducted?
Auditors perform both automated analysis using tools and in-depth manual reviews. They map contract logic, simulate potential attack vectors and test integrations with other smart contracts and blockchain networks.
Methodology
What types of vulnerabilities are commonly found?
What types of vulnerabilities are commonly found?
Common issues include reentrancy vulnerabilities, integer overflows/underflows, improper access control, unhandled exceptions, timestamp dependencies and logic errors in tokenomics or governance mechanisms.
Technical
Industry Certifications & Standards
Our team follows internationally recognized compliance services security standards and methodologies to ensure the highest quality of service.
ISO 27001Information Security
SOC 2Security Organization Control
OWASPApplication Security
PTESPenetration Testing
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Ship With Confidence
Don't let vulnerabilities put your users at risk. Get a comprehensive security audit from our expert team before your protocol goes live.
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