How long does a smart contract audit take?

The timeline for a smart contract audit depends on the complexity of the project. We begin with an evaluation phase to estimate the scope, timeline, and cost. Typically, audits are completed within a few weeks, but we work closely with you to meet your specific deadlines.

How much does a smart contract audit cost?

On average, a smart contract audit costs from $15,000 to $22,000. The cost and duration of the audit depend on many factors, such as the complexity of the project, the amount of code, and the customer’s timeline. After reviewing your code, we will be able to provide you with approximate figures.

How do I prepare for a smart contract audit?

To prepare for a smart contract audit, ensure your code is complete, follows best practices, and is well-documented. Provide clear functional and technical requirements, set up the development environment, and include comprehensive unit tests. This helps auditors thoroughly review your project and deliver the best results.

What happens if vulnerabilities are found?

On identifying vulnerabilities, we provide a detailed report outlining the issues and recommending solutions. After you’ve addressed the findings, we conduct a follow-up review to ensure all vulnerabilities have been successfully remediated

Smart Contract Audit

Q: What is a smart contract audit?

A smart contract audit is a thorough review and analysis of a smart contract's code to identify and fix security vulnerabilities, logical errors, and compliance issues.During an audit, security experts examine the contract's logic, functions, and dependencies, using both automated tools and manual reviews. The goal is to prevent issues such as developer errors, potential exploits, or external threats that could compromise the contract's integrity and the assets it manages.

Prevent costly exploits, protect your users, and build investor trust. Hacken's proven audit process, with over 1500 projects secured and $140 billion+ in assets protected, combined with strategic partnerships, provides security and visibility your project deserves.

Security partner for Web3 builders, enterprises, and governments since 2017

1500+
public audits completed
2400+
critical, high and medium findings
60+
certified security engineers
180+
strategic ecosystem partners

What is a smart contract audit?

A smart contract audit is a detailed assessment of the contract's code to identify security issues, incorrect or inefficient coding, and potential optimizations.

During the audit, Hacken's security experts help you to:

Identify vulnerabilities and attack vectors like reentrancy attacks, integer overflows, and weak access controls—the leading cause of crypto losses in 2024, accounting for 75% of all exploits.
Align your code with industry-standard security frameworks such as the SWC Registry and OWASP, minimizing risk and ensuring compliance with blockchain security standards.
Improve the performance of your smart contracts by optimizing code for efficiency and scalability, reducing gas fees, and enhancing transaction throughput for high-volume projects.
Train your developers in smart contract security best practices and equip them with the latest tools and techniques to write secure and efficient code.

Identify vulnerabilities and attack vectors like reentrancy attacks, integer overflows, and weak access controls—the leading cause of crypto losses in 2024, accounting for 75% of all exploits.

Align your code with industry-standard security frameworks such as the SWC Registry and OWASP, minimizing risk and ensuring compliance with blockchain security standards.

Improve the performance of your smart contracts by optimizing code for efficiency and scalability, reducing gas fees, and enhancing transaction throughput for high-volume projects.

Train your developers in smart contract security best practices and equip them with the latest tools and techniques to write secure and efficient code.

Hacken’s smart contract audit process

Since 2017, we've refined our audit process to deliver comprehensive and timely audits every time.
From evaluating the scope to verifying fixes, we ensure every stage contributes to a secure and efficient smart contract.

Onboarding

Code review & analysis

Testing

Reporting

Remediation check

“We work closely with you to define the scope, timeline, and budget that meet your specific needs and expectations. Then, we prepare the testing environment and unit tests to ensure an optimal process and maximum value.”

Dmytro IlchenkoAccount Manager at Hacken

Onboarding“We work closely with you to define the scope, timeline, and budget that meet your specific needs and expectations. Then, we prepare the testing environment and unit tests to ensure an optimal process and maximum value.”

Dmytro IlchenkoAccount Manager at Hacken

Code review & analysis“Our security auditors combine manual code review with advanced automated tools (like MythX and Slither), covering everything from line-by-line scrutiny for logic errors and vulnerabilities to data flow analysis and identification of potential exploits.”

Ivan BondarSmart Contract Audit Expert at Hacken

Testing“We go beyond static analysis to dynamically test your smart contract's functionality and resilience. This includes unit testing individual components, fuzzing with unexpected inputs to uncover hidden vulnerabilities, and invariant testing to ensure your contract behaves as expected under all conditions.”

Ataberk YavuzerSmart Contract Audit Expert at Hacken

Reporting“You'll receive a clear, concise, and actionable audit report detailing our findings. We provide vulnerability descriptions with severity levels, actionable remediation advice, and code snippets for easy understanding. We also include an executive summary for non-technical stakeholders.”

Turgay Arda UsmanLead Smart Contract Auditor at Hacken

Remediation check“After you implement our recommended fixes, we'll review the updated code and re-test to ensure vulnerabilities are eliminated without introducing new issues. A final report update provides complete confidence in your smart contract's security.”

Sofiia-Irfan KucherenkoAccount Manager at Hacken

Our audit methodology combines industry best practices with proprietary techniques, developed and refined through years of experience and over 2300 successful audits. In 2024, 52% of our audits were private.

View our methodology

Most common smart contract vulnerabilities from our 2300+ audits

In 2024 alone smart contract vulnerabilities accounted for $269.5 million in losses, highlighting the importance of proactive audits. [source]

Hear from our clients

"We highly recommend Hacken to anyone in need of Web3 security services and a reliable partner for their blockchain initiatives. Their team’s professionalism and expertise in the security space have helped us to secure an ecosystem for our users."

Isha Tyagi

Technical Program Manager, Near

"Hacken has provided highly professional audits with outstanding quality. We are delighted to work with such a well-known and trusted security vendor."

Jason, Seong Ho Lee

DeFi Product Owner, Wemade

"Hacken founders inherited quality, professionalism, and integrity from Deloitte, their ex-employer."

Sunny Lu

CEO, Vechain

"Internal stakeholders are impressed with the work Hacken has completed so far. An organized team, they’ve managed the project well, never letting the six-hour time difference get in the way of productivity. Customers can expect an experienced and professional partner."

Tony Wei

CTO, Gate.io

"As our security partner, Hacken’s team of experts is a pleasure to work with. Their persistence in making recommendations and solving problems is impressive."

Qevan Guo

Co-founder, IoTeX

"They've extended their background and clarification on the subject to ensure the project's success."

Ruben Guevara

DevOps Engineer Security Oriented, PAID Network

Benefits of smart contract audit by Hacken

Technical excellence

Language-agnostic expertise

Expert audits in Solidity, Rust, Vyper, Move, and other languages for precise security analysis.

Proven methodology

Fine-tuned through 2300+ audits, our audit combines industry best practices with in-house tools.

Layered protection

Special pricing on Extractor (monitoring), DualDefense (crowdsourced audits), and HackenProof (bug bounties).

Ongoing support & transparency

Expert guidance & support

Adaptive guidance to resolve vulnerabilities with actionable solutions.

Real-time communication

Stay informed with direct communication and live updates through Portal, our platform for real-time audit access.

Free remediation checks

Post-audit verification to confirm all fixes pre-deployment.

Business growth & credibility

Strategic partnerships

Access 180+ partners network for collaboration & growth opportunities.

Reputation boost

Integrations with CoinGecko, CoinMarketCap, and CER.live, with potential coverage in tier-1 media.

Community promotion

Promotion to 300,000+ actively engaged followers across social media channels.

Securing Web3 projects across platforms & languages

Whether it’s Solidity on Ethereum, Rust on Solana, Move on Sui or any other combination – we’ve got you covered.

Indusry leaders rely on Hacken for their Web3 security

Top Smart Contract Auditing (Clutch)

Top Cybersecurity Company (Clutch)

Top Penetration Testing Company (Clutch)

Trusted member of leading industry organizations

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Smart Contract Audit

1500+

2400+

60+

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What is a smart contract audit?

Hacken’s smart contract audit process

Most common smart contract vulnerabilities from our 2300+ audits

Hear from our clients