Ethereum Smart Contract Auditing Services

The audit process for Ethereum smart contract is based on the comprehensive approach we follow to investigate the code for security flaws and potential vulnerabilities, and best possible ways to mitigate them.

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Why audit your smart contract with QuillAudits

Having an audit done by a competent firm is a must have for any smart contract, and with the expertise of QuillAudits it will be done flawlessly. The audit process for Ethereum smart contract is based on the comprehensive approach we follow to investigate the code for security flaws and potential vulnerabilities, and the best possible ways to mitigate them.


Importance of Auditing an Ethereum Smart Contract

Smart contracts become crucial if you are developing on the Ethereum blockchain. When you are dealing with such a critical component having users' and investors' funds locked in it, safety becomes the top priority. With a thorough analysis and scrutiny of the code, you can detect those vulnerabilities before malicious actors exploit them. At QuillAudits, we help Web3 projects built on the Ethereum blockchain achieve credibility and gain users' and investors' trust by mitigating contract risks.

Code Audit

Code Audit

The smart contract code is examined to find the areas that fall short of quality standards, increasing the risk portion of the contract exploitation. Our veteran smart contract auditors conduct a hands-on review to analyse the bug exposure in the contracts, thereby offering remediation to fix the issue and prepare for the safe launch of the contract.

Equipped with an industry-leading suite of security tools, we run the code through automated scanners to get rid of the minute possibility of missing out on any flaws in the contract. The manual code review combined with the automated security checks terminates the scope of security vulnerabilities in the Ethereum contracts.

Automated Security Check

Automated Security Check

Comprehensive verification

Comprehensive verification

The project’s behaviour is studied by launching it on the testnet, which helps assess its performance on the mainnet. The experts spot any shortcomings in the functioning, and mitigation guidance is offered to the project development team to rectify the errors before deployment.

A vulnerability report provides an extensive summary of the project studied throughout auditing. It covers the complete details about the observations on vulnerability issues, their associated severity level, mitigation suggestions and whatnot to enhance the security and thereby the efficiency of Ethereum smart contracts.

Detailed Vulnerability Reports

Detailed Vulnerability Reports


Our Ethereum Audit Services

Blockchain/Platform Audit

It is generally of the combined nature (smart contract + backend with wallets). We identify and research on best optimisations possible with the smart contract that may save the precious gas of Ethereum. We focus to make the platform more efficient and secure overall.

Blockchain/Platform Audit
Smart Contracts Audit
Smart Contracts Audit

A Smart contract audit is a process to test the source code against all known vulnerabilities and attacks. A Smart Contract audit identifies and prevents the deployment of security vulnerabilities that may cause to loss. Both business case logic and security point of view are considered.


How we Process

Process Flow Diagram
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Our Smart Contract Security Blueprint

SWC-100Function Default VisibilityCWE-710: Improper Adherence to Coding Standards
SWC-101Integer Overflow and UnderflowCWE-682: Incorrect Calculation
SWC-102Outdated Compiler VersionCWE-937: Using Components with Known Vulnerabilities
SWC-103Floating PragmaCWE-664: Improper Control of a Resource Through its Lifetime
SWC-104Unchecked Call Return ValueCWE-252: Unchecked Return Value
SWC-105Unprotected Token WithdrawalCWE-284: Improper Access Control
SWC-106Unprotected SELFDESTRUCT InstructionCWE-284: Improper Access Control
SWC-107ReentrancyCWE-841: Improper Enforcement of Behavioral Workflow
SWC-108State Variable Default VisibilityCWE-710: Improper Adherence to Coding Standards
SWC-109Uninitialized Storage PointerCWE-824: Access of Uninitialized Pointer
QuillAcademy IconLearn More about Web3 Security

A Comprehensive Look at Hacks and Scams in Web3

Each year, millions drain down the crypto hacks. Here are a few examples how hackers took advantage of the loopholes in the code to escape with millions:

In March 2022, $615M were stolen from Ronin Network, a platform powering the popular mobile game Axie Infinity.

In August 2021, the criminals transferred $611M-worth of Poly Network tokens to three wallets they controlled.

In September 2020, $275m worth of cryptocurrency was stolen from the Singapore-headquartered exchange KuCoin.

Top ten biggest cryptocurrency thefts by estimated losses as of June 2022

Caption: Values calculated according to cryptocurrency prices at the time of the theft

Source: Statista/Bloomberg, Business Insider, TechCrunch, CNBC, Ronin Network, Vice.

Hacks GraphCurious about the most common types of vulnerabilities and attack vectors in the Web3 space? Our Hackerboard can help you stay informed


Latest Work

Therapoid Smart Contract Audit Report

Therapoid Smart Contract Audit Report

TheRugGame Smart Contract Audit Report

TheRugGame Smart Contract Audit Report

Bored & Lucky Smart Contract Audit Report

Bored & Lucky Smart Contract Audit Report

PixelWar Smart Contract Audit Report

PixelWar Smart Contract Audit Report


Why QuillAudits

Check List

Audits Completed

Money Bag


Software Development

Lines of Code Audited

Years of Experience

Years of Experience


What our Clients are saying

Very professional and timed delivery. Also very prompt in responses and queries.

Stack OS

Vishnu Korde

CEO, StackOS

The team is very supportive and they were able to work as per our requirements

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QuillAudits did a great job with our audit, was very professional and provided quick service

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QuillAudits provided security enhancements for Polygon projects, earning positive feedback for their prompt and high-quality service as an auditing partner.

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Frequently Asked Questions

Visit our FAQs help centre to clear out any doubts or queries you may have regarding us and our services.

Explore FAQs
What is Ethereum Smart Contract Audit?
It is the process to scrutinize the smart contract code based on the Ethereum blockchain. It is a thorough analysis of the code against vulnerabilities and loopholes to ensure there are no errors in the source code.
How do you audit Ethereum smart contracts?
What are the key benefits of passing an Ethereum contract audit?
How much does it cost to audit an Ethereum smart contract?
What issues can be identified during the Ethereum contract audit?

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