Null risks, true returns
Blockchain security company protecting smart contract safety through audits and full-cycle protection for Web3 projects.
What we do
Code review
A manual review of the source code to detect logical errors, vulnerabilities, and ensure compliance with coding standards.
Pre-audits
A preliminary analysis of smart contracts to detect errors, enhance readability, and prepare for a full-scale audit with automated and manual reviews.
Smart contracts audit
A thorough security analysis to identify vulnerabilities through broad and in-depth code review.
Fuzz Testing
An automated testing process that generates random inputs to uncover issues not detected manually.
Formal Verification
A Method uses mathematical methods to ensure the correctness and reliability of smart contract functionality.
Continuous Audit Support
Continuous Audit Support ensures ongoing reviews of updates and new functionality by the same team, maintaining quality, reducing costs, and streamlining timelines by minimizing onboarding efforts.
About us
10+ years of experience in blockchain development and 3+ years in smart contract auditing.
We have led and audited major DeFi projects, including DEX aggregators, lending, liquid staking, stablecoins, yield aggregators, privacy solutions, asset management, and gaming. Our team consists of hackathon winners and top-tier security experts.
Security Across Industry Leading Platforms
We protect your project on Solidity, Cairo, Rust, FunC, Move ensuring reliability and minimizing vulnerabilities. We work with projects on Ethereum and EVM compatibles, Ton, Solana, Aptos, Sui blockchain as well as with zero knowledge proofs platforms based on Circom, Noir.
Why trust us
Securing Your Digital World: Your Trusted Partner in Web3 Protection with Cutting-Edge Solutions for Comprehensive Security.
O hacks
Not a single smart contract has been hacked by our audited specialists
$20B+
TVL was saved by the audits of our specialists
72222
Total nsloc audited by our specialists over the last year
FAQ: NullReturn Security Audits
Haven’t found what you’re looking for? Contact us
As a result of the smart contract audit, you receive a detailed report with findings, recommendations for fixes, and improvements to the architecture. Moreover, it enhances trust in your project and strengthens your confidence in the contract’s security.
A pre-audit is a preliminary review to catch basic issues, while a full audit involves deep analysis, testing, and detailed reporting.
No audit can provide absolute security, but it significantly reduces risks by identifying and fixing vulnerabilities.
Ensure your code is well-documented, provide a clear project scope, and share all necessary repositories and specifications.
Pricing depends on contract complexity, length, and urgency. Contact us for a customized quote.
Ensure your code is well-documented, provide a clear project scope, and share all necessary repositories and specifications.
You receive a detailed report with findings, recommendations, and optional re-audit after fixes are implemented.
Get in touch with us
Reach out for security consultations, audits, or support. Our team is here to help with any questions about protecting your Web3 project.
Sales & partnership hi@nullreturn.io
Telegram @nullreturn_io
Company Details
Registered Address Zeleznicka, 20, Novi Sad city, 21101, Serbia.
Request audit
Submit a request to get the timeline and cost of the service. If it's not convenient to fill out the form, message us at @nullreturn_io or hi@nullreturn.io