--- title: Smart contract auditing url: "https://www.unknowngravity.com/en/servicios/blockchain-security-audits" site: Unknown Gravity published: "2023-12-19T05:35:29+00:00" modified: "2026-07-15T10:51:34+00:00" language: en-US description: "‍We help you identify vulnerabilities, reduce risk exposure and document the residual risks of your blockchain project." section: "Home > Smart contract auditing" --- # Smart contract auditing > A smart contract audit is the review of a contract's code before deployment, to find vulnerabilities such as reentrancy, overflows or access control errors. The report documents each finding and its severity. Unknown Gravity audits contracts written in Solidity on EVM networks. VULNERABILITY DETECTION GAS AND COST OPTIMIZATION DETAILED REPORT AND RECOMMENDATIONS [Book a meeting](/en/meeting) A smart contract audit is the review of a contract's code before deployment, to find vulnerabilities such as reentrancy, overflows or access control errors. The report documents each finding and its severity. Unknown Gravity audits contracts written in Solidity on EVM networks. **We help you minimize risks, avoid economic losses and strengthen the security of your blockchain project.** ## 01 / In-house security audits Here we don't improvise with security. In our case, when we talk about security audits, we strive not to overlook a single line of code, subjecting it to all possible scenarios and observing every detail in detail. **The goal?** Detect the flaws we can identify and close them before they become a risk. For us, smart contract audits are not a simple “check”, they are the small steps necessary so that each project that passes through our hands is better prepared for the challenges that may arise. ## 02 / What is a security audit for smart contracts? A smart contract audit is nothing more than a simple review, since it is responsible for thoroughly analyzing every corner of the system in search of vulnerabilities and possible risks. In our case, we test, question and test each element, to make sure everything is ready to perform properly. And we are clear about it; after passing through our hands, you will have a clear map of the risks detected and how to fix them. Because you already know that for us security isn't just another step, it's the foundation on which we build each of our projects. ## 03 / What are these types of audits made up of? A good audit of smart contracts must follow a meticulous process and go through different steps that complement each other to reduce risk to a reasonable minimum. By this we do not mean identifying only visible faults, but rather carrying out an in-depth analysis that provides us with the necessary information for every aspect that may lead to an error, always within the scope the report sets out. ## 04 / Comprehensive analysis of smart contracts We began with a detailed review of smart contracts, with the objective of perceiving any existing weaknesses or flaws. We analyze every function, interaction and of course, every part of the logic of the contract to ensure that it fulfills the function for which it was optimally developed. For a greater understanding we will break down the techniques, methods and tools used for the review of smart contracts. ### 1. Structural analysis We begin with a detailed analysis in which we will thoroughly examine design patterns, such as the structure of smart contracts, so that they are correctly structured so that they do not cause future errors. ### 2. Static analysis In the case of this step, automated tools will be used to identify vulnerabilities in the code, evaluating its security and efficiency. ### 3. Code review Subsequently, we will continue with a manual analysis of the code, which will help us to find new vulnerabilities and verify those previously found in the static analysis. In addition, we will ensure that the logic of the contract matches that described in the technical document. ### 4. Gas consumption In this last phase, we will evaluate the performance of smart contracts in a real environment, giving priority to the amount of gas consumed and exploring ways to optimize the code for a more efficient use of gas. ## 05 / Detailed reports and recommendations Finally, we collect all the information that has been obtained in the audit of smart contracts, including everything from strengths to areas that need reinforcement. But we weren't going to be left alone on the surface; in addition, we offer practical recommendations to solve every problem you may have encountered. The purpose of this report is to provide a complete and clear view of the status of your project, with solutions that can be applied immediately. With this, what we hope is to provide you with a useful tool, with which you can make decisions and ensure that the security of your system is under control. ### Scope of the report Every report states what was reviewed: the exact version and commit of the code, the contracts included, and the external dependencies or third-party libraries excluded from scope. Changes made after that version are not covered and require a new review. ## Unknown Gravity: specialists in auditing for smart contracts Experience matters, especially when it comes to safety. That's why we know exactly where to look, what to try and how to reinforce every corner of your project. So, if you want to be calm... well, you know who the experts are *(yes, that's us)*. FAQ ## Frequently asked questions **What is a smart contract audit?** A smart contract audit is the process of reviewing and thoroughly analyzing a smart contract to identify vulnerabilities, code errors and improve its performance before being implemented on the blockchain. **Why is it necessary to audit a smart contract?** Smart contracts are susceptible to security flaws that could be exploited by attackers. An audit reduces risk by identifying known vulnerabilities in the code reviewed, for a specific version and date. It does not guarantee the absence of flaws, and it does not cover changes made after the audited scope. **What happens if vulnerabilities are found during the audit?** If we find vulnerabilities, we provide you with a detailed report with recommendations for correcting them. We work with you to implement the necessary solutions and ensure that your contract is secure. This page is informative. It is not legal, tax or investment advice, and it does not replace a case-by-case review. The rules cited change: check the current version on [BOE](https://www.boe.es) and [EUR-Lex](https://eur-lex.europa.eu). RELATED SERVICES [Blockchain consulting for companies](/en/servicios/consultoria-blockchain) [Development of smart contracts](/en/servicios/company-development-smart-contracts) [All blockchain services](/en/servicios)