Smart Contract Audits

Security audit of the smart contracts or any kind of a dApp.

Security Consulting

Helping you to understand and manage your cyber risk.

Vulnerability Management

Penetration testing and security assessment of the applications and infrastructure.

Security for a Decentralized World

smart contracts audit

Our audit reports are custom, thorough, and transparent. The report will contain the details of any identified vulnerabilities and classify them by severity (Critical, Major, Medium, Low, and Informational), along with suggested remediations.

Avoid Costly Errors

Auditing your code early in the development lifecycle prevents potentially catastrophic vulnerabilities after launch.

Expert Review

Veteran security auditors manually double-check your code to eliminate spurious results.

Continuous Verification

Monitor any security vulnerabilities as you write and change code.

Detailed Analytics

Receive a vulnerability report with an executive summary, vulnerability details, and mitigation guidance.

Our Tools

We contribute to the security of Web3 using the best tools for our security audits.


Slither is one of the most popular tools in the smart contract security audit industry. This tool was developed by trailofbits and was one of the very first tools in the market. Slither is developed by Python 3 and offers a nice API that helps security professionals to write their own analyzers quickly.


This tool is capable of analyzing smart contracts with a solidity version starting from 0.5.8. This tool fully automated security analyzer for Ethereum smart contracts that can prove contract behaviors as safe or dangerous with regard to a particular property.


This tool uses static analysis to discover vulnerabilities in the source code of smart contracts. SmartCheck evaluates Solidity source code against XPath patterns after converting it to an XML-based intermediate representation. This intermediate representation is generated using a lexical and syntactical analysis of Solidity source code.


Oyente checks for execution traces where transaction order can influence Ether flow, where the result of a computation depends on the timestamp of the block, where exceptions raised by calls are not properly caught, or where a contract can be re-entered multiple times by executing EVM bytecode symbolically.


One of the most famous tools in the industry of smart contract auditing is Mythril. This tool was developed by CONSENSYS on python and could easily be installed using pip. The tool makes use of all the latest analysis techniques, from symbolic execution, taint analysis, and many more techniques.


Manticore is another well-known symbolic execution based tool for detecting vulnerabilities in smart contracts. The tool is fully developed using python and already exists in Python default repository. The most interesting feature of this tool is that it can be used not only to scan Ethereum-based programs (smart contract binaries) but also x86/64, ARM binaries.


ContractFuzzer is a tool that makes use of this technique to find vulnerabilities in Ethereum smart contracts, based on the ABI specifications of smart contracts. In addition, the tool defines test oracles to detect security vulnerabilities, instruments the EVM to log smart contracts runtime behaviors, and analyzes these logs to report security vulnerabilities.


sFuzz is another Ethereum-based fuzzer for smart contracts. In comparison to other Solidity fuzzers, sFuzz combines the AFL fuzzer’s method with a lightweight multi-objective adaptive strategy that targets those difficult-to-cover branches.

Cybersecurity Services

Cybersecurity in Web3 projects

Smart Contracts Audits

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Penetration Test

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Security Consulting

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All-in Solution

Dynamic Security Testing For Your Modern Crypto Application

Network & Application Testing

Dynamic testing of both network and application to uncover the most complex vulnerabilities.


Web & Mobile dApps

Continuous security assessment of both web and mobile style modern applications.


Crypto Security Expertise

Deep knowledge and experience in testing of crypto applications.


Our Technology Test Ecosystem

$10 B+

Total Amount Lost To Defi Hacks and Scams In 2021


1000 +

Vulnerabilities Fixed


600 +

Web3 Projects Secured


$15 B+

Total Amount Secured By Blockchain Labs

Cybersecurity Protect

How we Secure your Web3 project


Why Blockchain Labs?

We are a team of veteran hackers who dived into the blockchain and smart contract security in the early days. Under our supervision, an audit is not just a filing of the checklist but rather a full-fledged research.

They Trust Us

Cybersecurity Protect

DeFi Security

Full-stack web3 security services delivered by top-tier ethical hackers with a focus on the real financial impact

We provide affordable yet intensive smart contracts audits. Our team of experienced smart contract auditors performs audits for tokens, NFTs, crowdsales, marketplaces, gambling games, financial protocols, and more! We leverage a combination of static analysis, automated tools, and a robust manual review process to provide industry-leading security recommendations to smart contract developers.

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