Smart Contract Audits: Best Practices and Common Pitfalls

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A smart contract audit is the process of reviewing and analyzing the code of a smart contract. This is important to identify security vulnerabilities in the contract. It also ensures compliance with legal and regulatory requirements so that it operates as exactly as intended. The audit is typically conducted by a third-party auditor or smart contract auditing company. The role of the smart contract auditor is to examine the code to identify potential flaws. These flaws can include  bugs, logical errors, or simple security vulnerabilities. Additionally, they can provide recommendations to enhance the contract’s functionality. The audit helps ensure the proper functioning of the smart contract. This can reduce the risk of financial loss, legal liabilities as well as reputational damage. It is an essential step in the smart contract development lifecycle. Therefore, they should be performed regularly to maintain the contract’s security and compliance as the technology changes. In this blog post, we shall take a look at the best practices in smart contracts along with their common pitfalls.

Best practices in smart contract audits

When it comes to smart contract audits, there are certain best practices that auditors should follow to ensure an effective audit. Firstly, it is essential to engage an experienced auditor who knows smart contract audits like the back of their hand. Thus, one should not compromise on quality when it comes to smart contract audits. A poorly done audit can jeopardies the entire smart contract. Other than that, the auditor should also be able to provide valuable insights and recommendations. This can prove useful in enhancing the smart contract’s functioning.

Afterwards, the smart contract auditor should review the smart contract code thoroughly. They can accomplish this through the use of automated and manual techniques. They should be able to identify potential flaws in the smart contract and then provide recommendations to mitigate these issues. This requires a high level of technical expertise and attention to detail to ensure that all the concerned problems are properly phased out.

Moving on, the smart contract auditor should also test the contract in various scenarios. This will ensure that the smart contract can operate as intended under pressure. This requires a thorough understanding of the contract’s purpose and functionality to ensure that it operates as intended in all situations. Moreover, the auditor should also verify that the contract meets the legal and regulatory requirements. This will prevent any legal trouble concerning the smart contract to arise. 

Furthermore, it is also important to use standardized audit frameworks, such as the Ethereum Foundation’s Smart Contract Best Practices or the Open Zeppelin Smart Contract Security Standards. These well-known audit frameworks can ensure that the audit is comprehensive on top of being consistent. They provide a standardized approach to smart contract auditing and ensure that all potential risks are addressed.

Finally, the auditor should provide a detailed audit report that includes the findings, recommendations, and remediation steps. The report should also include a summary of the audit methodology with a detailed review of the smart contract’s scope and limitations. This ensures that the contract owners will have a clear understanding of any potential vulnerabilities as well as the steps required to mitigate these risks.

By following these best practices, auditors can ensure that the smart contract audit is comprehensive, effective, and useful. Additionally, it should provide valuable insights and recommendations to further enhance the contract’s operating efficiency.

Common pitfalls

Despite the benefits of conducting a smart contract audit, there are several common pitfalls that auditors should be aware of. Likewise, it is important to avoid conflicts of interest between the auditor and the contract owners. Auditors who have a financial or personal interest should refrain from the audit, as this can compromise its impartiality.

Next, auditors should avoid using outdated or insufficient audit methodologies or tools. This includes relying solely on automated tools, without supplementing with manual reviews, or failing to use standardized audit frameworks. This can result in overlooking certain vulnerabilities or not detecting all issues. This can leave the contract at risk of exploitation.

Furthermore, auditors should avoid failing to consider the contract’s potential impact on the blockchain ecosystem. Failing to consider the impact on the entire blockchain can result in vulnerabilities or issues that affect the wider ecosystem. Of course, this may lead to far-reaching consequences.

Moving on, auditors should avoid providing overly technical reports that are difficult for the contract owners to understand. This defeats the entire purpose of the audit as the contract owner will fail to understand the issue at hand. Therefore, the audit report should be easy-to-read and keep technicalities to a minimum for smooth communication.

Lastly, auditors should avoid providing a false sense of security by providing simple assurances that the contract is completely secure. Smart contract audits can only provide a snapshot of the contract’s security at a particular point in time. Therefore, they cannot guarantee its security in perpetuity. Thus, a smart contract audit will have to be performed at regular intervals to ensure that the contract functions smoothly.


By avoiding these common pitfalls and by following the best practices, auditors can ensure that the smart contract audit is comprehensive and effective. The smart contract audit ought to  provide valuable insights and recommendations. These factors are vital to enhance its security and efficiency, thereby building a certain degree of trust in the contract itself.