Blockchain technology is one of the revolutionary inventions of our time. Its open source and highly secure features have enabled an explosion of DeFi applications and crypto projects. However, although the blockchain is almost impenetrable, its applications are not.
Most blockchain-based protocols run on smart contracts , prone to vulnerabilities and code bugs. A single hacker attack is enough to destroy several months of development and the project’s reputation forever.
Fortunately, any project can prevent this catastrophe with an outsider. smart contract audit . This article takes a closer look at the importance of performing a smart contract audit services of your protocol.
What is a smart contract verification?
A smart contract is the engine of a blockchain-based protocol. For the application to run smoothly, this contract must be error free. A smart contract audit performs an in-depth analysis of the contract code. In this way, it helps developers to identify potential vulnerabilities or bugs before implementing a smart contract.
In general, projects should rely on external reviewers, who can audit developers’ work comprehensively and impartially. The good news is that new projects can rely on professional and smart contract review services to complete this task.
Smart contract verification prices vary depending on the project or service you choose. However, its benefits outweigh the risk of implementing a flawed smart contract on the blockchain.
Why smart contract audits are important
Writing a smart contract on the blockchain without verifying it is very treacherous. First, once implemented, the code cannot be changed. And, if the code contains errors, your data is vulnerable to hacker attacks. This means that your application is subject to a high risk of data theft.
Today, the breaking of smart contracts in the cryptosphere is expected. Hackers are constantly on the lookout for technical code issues and human error. Once they find and mine one, they can get away with millions of dollars worth of cryptocurrency and data.
Famous smart contract hacks
An example of the importance of smart contracts is the theft of $3 million from the DeFi Protocol Cover in 2022. Then a hacker noticed that the protocol had an infinite mining vulnerability. Therefore, he invested a considerable sum before withdrawing his investment and profits. He repeated these steps several times to accumulate profits that the protocol could not sustain.
Fortunately, the Cover attacker turned out to be a White Hat hacker, who returned the funds. Ultimately, he intended to show the project developers that his smart contract was flawed. However, not all attacks have such a moving ending. Other famous and less fortunate cases include:
The list goes on and on and can be expanded to include just about any project that implements an unverified smart contract.
In the history of blockchain, 2020 will continue to be one of the years with the most hacker attacks on smart contracts. This is because these events have led to the emergence of several experienced smart contract auditors. And, as practice shows, an increase in auditing and utilization services has reduced the efficiency of these attacks.
Today they are opting for smart contract verification before implementation is a must. However, this process must pass through the lens of an external reviewer. This is because project developers may have difficulty considering solutions to vulnerabilities in their code. Also, an external audit increases user confidence more than an internal audit.
How a Smart contract verification works
The risk of hacking is enough of a motivation for any project to opt for third-party smart contract auditing. However, security is not the only reason for this. Developers must also consider how beneficial it is for users to use their applications.
Creating and implementing a smart contract for beginning developers may seem easy at first. However, one of the main challenges that they will face in the near future is gas optimization . This refers to the commission that users must pay to use a smart contract. For example, if the contract is poorly optimized, users will have to pay large sums, which exceed the potential earnings. As a result, they may abandon the project altogether.
Control is a complex process, but it can help solve and prevent these problems. Is that how it works!
Phase 1: Project developers and reviewers agree on the scope of work
The controlled party provides the auditor with all the necessary information about the project and its smart contract code.
Phase 2: Reviewer collects code layout templates
The auditor inspects the code and reviews the architecture to ensure optimal integration of third-party smart contracts.
Step 3 — Thorough Test
The auditor verifies all the functions of the smart contract. Experts test all possible use cases and known exploits that can attack the deal in this process .
Step 4 — Manual Analysis
The reviewers extensively inspect the smart contract and the code line by line. In this way, they detect possible risks and vulnerabilities.
Step 5 — Initial Report
Reviewers produce an initial report of their findings and suggest all vulnerabilities.
Step 6: Correct Errors
The auditors suggest solutions for any mistakes or errors that they presented in the initial report.
Step 7: Final Verification Report
After fixing all potential vulnerabilities, the auditors confirm the reliability of the smart contract. Also, they issue a successful bsc smart contract audit certificate. This document serves the project to demonstrate its reliability and trustworthiness to users and investors.
Final Thoughts
It is worth noting that this is the general process of a smart contract audit. However, the standards and procedures may differ depending on the auditor or the tool you choose to use. In addition, this sector is still developing. Therefore, it can change according to technological advances and market needs.
