Solidity Smart Contract Audits

Industry Leading Security Reviews and Smart Contract Security Audit Reports On Solidity Code & Projects.

Less than 3 hour response time

Our Audit Process

Extensive Manual
Code Review

In-depth examination of code for hidden issues.

Vulnerability
Analysis

Identifying potential security weaknesses.

Offensive
Testing

 Using leading software toolkits to simulate attacks.

Development
Revisions

Providing initial feedback for improvements.

‍Final Analysis and
Report

Detailed final assessment with comprehensive findings.

Hashlock Solidity Audit

Manual Analysis: Thorough examination of Solidity code for latent issues.
Vulnerability Finding: Pinpointing potential security risks.
Thorough Testing: Using advanced tools for attack simulations.
Client Communication: Ongoing updates and communication.
Final Report: Detailed summary of findings and recommendations.

Trusted Audit Reports

Going beyond industry standard, we provide value to developers and the wider community by including understandable context and risk information:

  • Code vulnerabilities and suggestions
  • Project context and creation
  • Risk assessments
  • Industry Research

The Hashlock Security Rating System

Our Blockchain audits are based on our consistent rating system, in which code is qualified based on its quality, vulnerability, future risk, and complexity. We advise that projects with a rating less than secure should not be deployed, and the Hashlocked rating is reserved for projects that value and invest in ongoing security efforts after the audit to protect their stakeholders.

Benefits of Solidity Auditing with Hashlock

Manual Security Research

Engaging in manual security research as part of the auditing process is a critical first benefit of using Hashlock for Solidity smart contract audits. This approach involves in-depth analysis by experienced professionals who scrutinize the code for vulnerabilities that automated tools might miss. They examine the contract’s logic, compliance with best practices, and resilience against known attack vectors. This human element in the audit process helps in identifying subtle security flaws or logical errors, which are often overlooked by automated scanning tools. This ensures a more robust and secure smart contract, essential for maintaining trust and integrity in any blockchain-based system.

Comprehensive Vulnerability Detection

Hashlock’s auditing process is designed to detect a wide range of vulnerabilities in Solidity smart contracts. This includes common issues like reentrancy attacks, overflow/underflow bugs, and gas limit vulnerabilities. The comprehensive nature of this detection process means that even the most sophisticated and hidden flaws can be identified. This thoroughness is vital in ensuring the security and reliability of smart contracts, as even a single overlooked vulnerability can lead to significant losses or breaches.

Contract Optimisation Suggestions

Beyond identifying security vulnerabilities, Hashlock also provides valuable insights into contract optimization. This involves suggesting improvements in the code that can enhance its efficiency, reduce transaction costs (gas fees), and improve execution speed. This aspect of the audit is particularly beneficial for developers looking to optimize their smart contracts for better performance and cost-effectiveness on the blockchain, thus making their applications more appealing and accessible to users.

Regular Updates and Post-Audit Support

Another significant benefit of using Hashlock for Solidity smart contract audits is the provision of regular updates and post-audit support. The blockchain ecosystem is dynamic, with new threats and best practices emerging regularly. Hashlock’s auditing service includes updates in response to these changes, ensuring that the audited smart contracts remain secure over time. Additionally, post-audit support helps developers address any issues that arise after the audit, providing a safety net and ensuring long-term security and functionality of the smart contracts.

Solidity serves as the backbone of many decentralised applications and empowers developers to create innovative solutions on the blockchain. However, even the most exceptionally well-crafted Solidity code can harbour hidden vulnerabilities and unwanted headaches.

The solution to help combat these potential threats and keep them at bay? Solidity audits. They act as a safety net of sorts, ensuring your smart contracts are secure, efficient, and reliable before you release them into the wild.

At Hashlock, we’re experts in Solidity auditing, providing our valued clients with comprehensive security assessments that leave no stone unturned.

We will painstakingly examine your code, identifying any potential weaknesses and providing actionable recommendations for improvement. Think of us as your silent guardians of the code, working tirelessly in the background to ensure your blockchain project is built on a solid foundation of security and trust.

Why Choose Hashlock for Solidity Auditing?

When it comes to securing your Solidity-based project and ensuring its continued success, let Hashlock be your trusted partner. Here’s what sets us apart:

Manual Security Research

Engaging in manual security research as part of the auditing process is a critical first benefit of using Hashlock for Solidity smart contract audits. This approach involves in-depth analysis by experienced professionals who scrutinise the code for vulnerabilities that automated tools might miss. They examine the contract’s logic, compliance with best practices, and resilience against known attack vectors. This human element in the audit process helps in identifying subtle security flaws or logical errors, which are often overlooked by automated scanning tools. This ensures a more robust and secure smart contract, essential for maintaining trust and integrity in any blockchain-based system.

Comprehensive Vulnerability Detection

Hashlock’s solidity auditing process is designed to detect a wide range of vulnerabilities in Solidity smart contracts. This includes common issues like reentrancy attacks, overflow/underflow bugs, and gas limit vulnerabilities. The comprehensive nature of this detection process means that even the most sophisticated and hidden flaws can be identified. This thoroughness is vital in ensuring the security and reliability of smart contracts, as even a single overlooked vulnerability can lead to significant losses or breaches.

Contract Optimisation Suggestions

Beyond identifying security vulnerabilities, Hashlock also provides valuable insights into contract optimization. This involves suggesting improvements in the code that can enhance its efficiency, reduce transaction costs (gas fees), and improve execution speed. This aspect of the audit is particularly beneficial for developers looking to optimize their smart contracts for better performance and cost-effectiveness on the blockchain, thus making their applications more appealing and accessible to users.

Regular Updates and Post-Audit Support

Another significant benefit of using Hashlock for Solidity smart contract audits is the provision of regular updates and post-audit support. The blockchain ecosystem is dynamic, with new threats and best practices emerging regularly. Hashlock’s auditing service includes updates in response to these changes, ensuring that the audited smart contracts remain secure over time. Additionally, post-audit support helps developers address any issues that arise after the audit, providing a safety net and ensuring long-term security and functionality of the smart contracts.

Client Success Stories

Don’t just take our word for it! We’ve helped numerous clients secure their Solidity smart contracts and achieve their blockchain goals and we have a wealth of glowing client testimonials to prove it. Additionally, please feel free to contact us and request to review one of our case studies. We’ll gladly show you real-life scenarios where we have helped out clients smash their targets and achieve exceptional results in the Web3 landscape.

Learn more about our team and our commitment to excellence, here.

Common Vulnerabilities in Solidity Smart Contracts

Some common vulnerabilities we often encounter during Solidity audits include:

  • Reentrancy Attacks
    These occur when a malicious contract repeatedly calls a function within your contract before the first call is completed, potentially draining funds.

  • Integer Overflows/Underflows
    These happen when arithmetic operations within your contract exceed the maximum or minimum value that can be stored in an integer, leading to unexpected results.

  • Unprotected Functions
    If functions that should only be accessible to authorised users are left unprotected; attackers could exploit them to gain unauthorised access or manipulate your contract’s state.

  • Logic Errors
    Flaws in the contract’s logic can lead to unexpected behaviour and potential exploits.

  • Denial of Service (DoS) Vulnerabilities
    Attackers could exploit vulnerabilities to prevent legitimate users from interacting with your contract.

Benefits of Conducting
Solidity Audits

Investing in a Solidity audit offers numerous advantages:

  • Enhanced Security
    Identify and address vulnerabilities before they can be exploited, thus protecting your project from financial losses and reputational damage.
  • Ensured Functionality
    Verify that your smart contracts function as they are intended, preventing any unexpected behaviour and ensuring a smooth user experience.
  • Increased Trust
    Demonstrate your commitment to establish robust security measures and build trust among your users, investors, and the broader community.
  • Reduced Risk
    Mitigate the risk of costly security breaches and the associated legal challenges.
  • Improved Code Quality
    Receive expert feedback and recommendations from us to improve the quality and efficiency of your Solidity code.

Our Solidity Audit Process

Our Solidity audit process is systematic and comprehensive, offering a thorough assessment of your smart contracts.

Extensive Manual Code Review

Our expert auditors meticulously examine every line of your code, identifying potential vulnerabilities and ensuring it adheres to best practices.

Vulnerability Analysis

We employ a diverse range of techniques to identify potential security weaknesses, including control flow analysis, data flow analysis, and dependency analysis.

Offensive Testing

We use leading software toolkits to simulate real-world attacks, assessing the resilience of your smart contracts against common threats such as reentrancy attacks, arithmetic overflows/underflows, and access control issues.

Development Revisions

After our initial analysis, we will provide you with clear and concise feedback on any identified vulnerabilities. We’ll work with you to understand your code and offer actionable recommendations for immediate improvement.

Final Analysis and Report

Once the necessary revisions have been made, we’ll then conduct a final analysis and provide you with a comprehensive audit report. This report will include our detailed findings, including a summary of identified vulnerabilities, an assessment of their severity, and recommendations for remediation / future prevention.

Related Services

In addition to Solidity audits, Hashlock offers a range of services to enhance the security of your blockchain project:

Blockchain and Web3 dApp Audits

We audit decentralised applications (dApps) built on various blockchain platforms, ensuring their security and functionality.

Rust Smart Contract Audits

We provide specialised audits for smart contracts written in Rust, a programming language known for its security and performance.

Web3 Security Audits

We offer comprehensive security assessments for a wide range of Web3 projects, including DeFi protocols, NFT marketplaces, and DAOs.

Frequently Asked Questions about
Solidity Audits

A Solidity audit is a comprehensive review of your smart contract code to identify potential security vulnerabilities. It’s crucial for protecting your project from hacks, financial losses, and reputational damage.

This largely depends on the size and complexity of your codebase. We’ll work with you to establish a realistic timeline that meets your needs.

Common vulnerabilities include reentrancy attacks, integer overflows/underflows, logic errors, and access control issues (to name a few).

It all depends on the size and scope of the project. Contact us for a personalised quote.

Yes, we have experience auditing a wide range of Solidity projects, from simple token contracts to complex DeFi protocols.

Our reports are comprehensive and easy to understand, including detailed descriptions of identified vulnerabilities, severity assessments, and actionable recommendations for remediation.

It’s recommended to conduct audits at various stages of development, especially before major upgrades or deployments.

Get Started with Your Solidity Audit

Is it time to fortify your Solidity smart contracts? Would you like to establish robust security measures to protect your blockchain project? If so, then Hashlock is at your disposal. Request an audit today and let our expert team provide you with the peace of mind you deserve.

We’ll start with an initial consultation to discuss your project’s specific needs and objectives. Following that, our team will guide you through the audit process, providing clear communication and expert advice every step of the way. Alternatively, feel free to contact us directly and speak with one of our friendly and knowledgeable advisors.

Request an Audit

Our team will send you an estimated quote within 24-48 hours!