Blockchain smart contract audit services

Unicsoft assesses the security of your smart contracts, identifies any weaknesses, and alerts you of the risks. Try Unicsoft’s smart contract audit findings and enjoy actionable guidance for reducing the risk of compromising data security.

Badges
There are three reasons why businesses rely on smart contract audit services:
  • Due to the decentralization and transparency of the blockchain, projects require smart contract audits. Almost all crypto projects are publicly available to discover and exploit flaws for malicious purposes.
  • Smart contract audits raise confidence in ICOs and provide guarantees for investors, removing security concerns around investment opportunities.
  • Auditing smart contract code at the beginning of development helps avoid any exploitation of potential vulnerabilities after a project is launched.

Most often, a security audit is requested by:

Crowdsales
Crowdsales
Crowdsale is a widespread application for Ethereum smart contracts. They allow users to dispense tokens in multiple ways, making it a complex use case. In this case, the audit of smart contracts becomes the main point of a hassle-free launch.
DeFi applications
DeFi applications
The DeFi protocols’ complexity and multiple smart contracts involved create additional requirements for security and auditing.
Decentralized apps and crypto wallets
Decentralized apps and crypto wallets
A smart contract audit is a must-have procedure before launching any decentralized application to the mass market.

The standard smart contract audit process when working with Unicsoft

A free kick-off consultation
01
A free kick-off consultation
You get a custom quote
02
You get a custom quote
We gather project requirements
03
We gather project requirements
Start audit
04
Start audit
We provide an initial report
05
We provide an initial report
Adjust logic and refactor contract's code
06
Adjust logic and refactor contract's code
Provide you with the final audit results
07
Provide you with the final audit results
Unicsoft’s portfolio contains dozens of completed blockchain projects for clients spanning a range of industries and use cases.

Smart contract security vulnerabilities

Smart contracts protect certain key elements of a business process that involves multiple parties.

Since this is a new technology, hackers continue to look for new areas to attack, with the goal of compromising blockchain operations.

Reentrancy
Reentrancy
This vulnerability became widely known after the crash of the TheDAO project in 2016. When funds are sent to an address with the msg.sender value using the low-level call () function, the contract becomes vulnerable to repeated calls and an attacker is able to exploit the vulnerability to receive twice as many funds as they should.
Denial of Service
Denial of Service
Denial of Service implies multiple vulnerabilities leading to the inoperability of a smart contract. Imagine there is a contract with unlimited winners who receive the reward all at the same time. If the value exceeds the number of gas resources in the block, the transaction will not be executed. Consequently, all the rewards remain in the network under a frozen condition.
Access Control
Access Control
All functions in Solidity refer to one of four visibility specifiers: public, private, external, and internal. Function without declaring a specifier is automatically listed as public, that is why it can be called from anywhere. Using this type of vulnerability, you can take possession of someone else's contract, or vice versa, and force the user to log in to the contract you need.
Arithmetic Issues
Arithmetic Issues
Integer overflow vulnerabilities, as in other languages, arise from the limited size of memory allocated to the variable. Special functions, due to the lack of checking the integrity of the lower bound, allow you to withdraw an unlimited number of tokens.

In addition to these technical exploits, there are a number of smart contract design issues:

  • Inconsistency between contract specification and code implementation
  • Inadequate design, logic, and access control
Get in touch for a consultation. It's free and we'll help you plan your smart contract audit and formulate the requirements.

What our clients say

Very efficient and reliable resource provider. Quickly reacted to our request and provided an interesting suite of candidates. During the cooperation period always available and ready to help. Overall experience very good. Highly recommended.

Tomasz Mierzwa
Tomasz Mierzwa

Lead Data Architect, MakerDAO

Thanks to the expertise that the Unicsoft team brought to the table, the company was able to complete the project faster and at a better cost. They did this by using advanced and transparent methodologies that were trustworthy, responsive, friendly, and professional.

William Rehm
William Rehm

Founder & CEO, Deedstack Inc

With Unicsoft's help, the client now has the needed capacity to accomplish their ongoing projects. More importantly, the delegated developers have gelled seamlessly with the internal team, resulting in high-quality and timely outputs. Overall, this has been a successful partnership.

Njal Hansen
Njal Hansen

CEO, Subscription Service Provider

Lifewatch worked with Unicsoft for 3.5 years, during this time the product was launched and supported for over a year. Unicsoft allocated a team of very professional developers who did a great job for us and we intend to work with Unicsoft more in the future.

Omri Cohen
Omri Cohen

SW Group Manager & Architect, LifeWatch, USA-Israel

I think that they have a can-do attitude. We threw a lot of requests and a lot of very specific timing requirements at them. They were pretty adaptable and willing to put in extra hours to service us.

William Page III
William Page III

Chief Operations Officer, Dashboard Dealership Enterprises, USA

The ditto and Unicsoft story is a perfect example of partnership in practice. Unicsoft has never let us down. Unicsoft gives us an edge and advantage.

Michael Wilson
Michael Wilson

Founder & Creative Director, ditto, UK

I couldn’t be more happy with Unicsoft, their professionalism, and with the result of what they built for my client.

Chad Davis
Chad Davis

CEO, CrossOceans, USA

Unicsoft quickly supplied talented developers and thoroughly documented the project. The team was knowledgeable, communicative, and committed. They were genuinely interested in ensuring our satisfaction.

Andreas Sandin
Andreas Sandin

CEO, Hackyard Internet AB

I’m very happy with the iOS and Android work Unicsoft performed for me. The quality of code and communications Unicsoft provided has certainly proved they are a capable and trustworthy team of professionals. I would highly recommend them as a highly competent, cost-effective development team.

Tim Smith
Tim Smith

EVP/COO, Critical RF Inc, USA

Right from the start Unicsoft inspired confidence. They quickly identified the steps necessary to achieve our desired result and gave us regular updates on their progress.

Cody Thornton
Cody Thornton

Assistant Property Manager, Conscience Bay Company, USA

Unicsoft’s ability to deliver high-quality development work on time led to an ongoing partnership. The team met aggressive deadlines and adapted to the client’s work style as needed. Clear communication, proactive decision-making, and a customer-oriented approach are hallmarks of this project.

Konstantin Anissimov
Konstantin Anissimov

Former CTO, 4B Group

The engagement helps the client provides a high level of value to their customers. Unicsoft successfully picked up on the nuances of the project and adapted to the working style of the client. The team is hard-working and innovative.

Sunil Tom Jose
Sunil Tom Jose

Director of Engagement, AlphaWallet

I’d recommend Unicsoft because I felt their engagement and understanding of our business. They offered the best solution provision of what we were looking for. They were very responsive to the requests, very flexible just going in flow with our changes.

Alan Ball
Alan Ball

Managing Partner, Octagon, UK

Our engagement with Unicsoft was very satisfying. They reported everything and delivered the product on time. If there were any issues, they were discussed upfront. They didn’t wait for the problem to occur.

Harry Disseldorp
Harry Disseldorp

CEO, NRG Software Solutions

We have been highly impressed by the close cooperation, pro-active team, and project execution within the schedule and budget. The intermediate results were demonstrated permanently and transparently every week. Enough attention was paid to documentation, which was really useful for our product's future scalability...

Konstantin Ivanov
Konstantin Ivanov

Chief Digital Officer (CDO) at Atlantic Group (AGL)

We were able to quickly grow our staff. As a startup, we couldn’t waste time looking to hire people in every part of our company. But by working with Unicsoft, we were able to rapidly grow our product line and engage with our core customers quicker.

Dmitry Dain
Dmitry Dain

Founder and CTO, Virgil Security, Inc.

Unicsoft was ready to adapt to new challenges as needed even if that meant more learning on their end. The team was managed in a transparent way and we were able to follow the development both in terms of the code and in terms of the user load. Overall, I can say the project management was excellent.

Pavel Paramonov
Pavel Paramonov

Chief Science & Technology Officer, Ternary Intelligence

Transparency in communication is a fantastic skill for a partner to have. In addition, Unicsoft proved their expertise among a vast range of technologies, which was emphasized by our client. The project manager was extremely responsive. He was available 24/7 to cover all questions and demonstrate progress as needed.

Andre Kholodov
Andre Kholodov

CEO, ADUK GmbH, Germany

I've been much more satisfied with Unicsoft's work compared to other local providers in North America. They're dedicated, smart, and work with my business, rather than for my business. I've also been very impressed by the quality of their code overall.

Paulina Podgorska
Paulina Podgorska

Founder, SOSsitter, Canada

A professional, highly skilled and dynamic team was assigned to my project who from day 1 was committed to my projects success! Even during the global lock-down period, they were responsive and quick to provide high-quality deliverables, thank you!

Morne Moolman
Morne Moolman

Founder, Concept Stage Project

I can definitely recommend Unicsoft as a reliable partner. They have flexible working approaches, pleasant and dedicated staff, and always trying to solve the problem - not to redirect it. Reasonable price model, technically strong engineers, and quick and efficient staffing process.

Oleksandr Andrushenko
Oleksandr Andrushenko

COO, GFI

Level of commitment, providing subject matter experts on short notice, and hospitality has given a very positive feeling towards Unicsoft personnel and their business processes.

Benny Low
Benny Low

Co-Founder, Xypher Pte, Singapore

It was excellent. We have never been disappointed. Problems did arise, but Unicsoft maintains a wonderful platform for collaboration through which we found solutions. They really analyzed and tried to understand the business use of the tool I wanted to develop.

Imran Rehman
Imran Rehman

Owner, KOKORO, Austria

The PM was always available and we didn't have any issues. The team was flexible and they were offering solutions based on their experience. The developer was going the extra-mile and based on the internal feedback from the in-house team, everyone was extremely satisfied to work with him from the technical perspective as well.

Inga Viznytsia
Inga Viznytsia

Product Manager, Media Production Company

The people we have worked with at Unicsoft have been knowledgable with our codebase, and have contributed code and suggestions that our entire team finds valuable. We have used Unicsoft with both short term (~1-2 month) and long term (6 month+) projects and in each case, the engineers we work with take ownership and pride in the code that they write. I can't recommend them enough.

Arjan Singh
Arjan Singh

Director of Software Engineering at FIGS

We needed a team to bring our idea to life within tight deadlines. We chose Unicsoft for broad expertise and involvement in the project from the beginning. Unicsoft proved deep expertise, readiness to do the extra miles to build the solution within tight deadlines.

Mehdi Bellatig
Mehdi Bellatig

Founder at FranceVerif

Unicsoft were key to our engineering development in early phases. They were extremely professional, knowledgeable and acted as a true partner to help build our iOS and Web applications. A number of their team members rose to the challenges and I would like to make specific mention of their iOS developers & account management team who treated our needs as theirs and ensured a timely & superlative output.

Prashant Kumar
Prashant Kumar

I was working for a big software development company when Unicsoft was helping us to cover our internal and external needs with all kinds of services needed for the implementation of our projects. They provided us with specialists with the required maturity level and technical ability according to the request. They are always engaged in the process and consult us regarding the best way to obtain the most realistic solution.

Viktoriia Kovryzhenko
Viktoriia Kovryzhenko

Office Manager

1 /

What our clients are saying

Very efficient and reliable resource provider. Quickly reacted to our request and provided an interesting suite of candidates. During the cooperation period always available and ready to help. Overall experience very good. Highly recommended.

Tomasz Mierzwa
Tomasz Mierzwa

Lead Data Architect, MakerDAO

rating

Thanks to the expertise that the Unicsoft team brought to the table, the company was able to complete the project faster and at a better cost. They did this by using advanced and transparent methodologies that were trustworthy, responsive, friendly, and professional.

William Rehm
William Rehm

Founder & CEO, Deedstack Inc

rating

With Unicsoft's help, the client now has the needed capacity to accomplish their ongoing projects. More importantly, the delegated developers have gelled seamlessly with the internal team, resulting in high-quality and timely outputs. Overall, this has been a successful partnership.

Njal Hansen
Njal Hansen

CEO, Subscription Service Provider

rating

Lifewatch worked with Unicsoft for 3.5 years, during this time the product was launched and supported for over a year. Unicsoft allocated a team of very professional developers who did a great job for us and we intend to work with Unicsoft more in the future.

Omri Cohen
Omri Cohen

SW Group Manager & Architect, LifeWatch, USA-Israel

rating

I think that they have a can-do attitude. We threw a lot of requests and a lot of very specific timing requirements at them. They were pretty adaptable and willing to put in extra hours to service us.

William Page III
William Page III

Chief Operations Officer, Dashboard Dealership Enterprises, USA

rating

The ditto and Unicsoft story is a perfect example of partnership in practice. Unicsoft has never let us down. Unicsoft gives us an edge and advantage.

Michael Wilson
Michael Wilson

Founder & Creative Director, ditto, UK

rating

I couldn’t be more happy with Unicsoft, their professionalism, and with the result of what they built for my client.

Chad Davis
Chad Davis

CEO, CrossOceans, USA

rating

Unicsoft quickly supplied talented developers and thoroughly documented the project. The team was knowledgeable, communicative, and committed. They were genuinely interested in ensuring our satisfaction.

Andreas Sandin
Andreas Sandin

CEO, Hackyard Internet AB

rating

I’m very happy with the iOS and Android work Unicsoft performed for me. The quality of code and communications Unicsoft provided has certainly proved they are a capable and trustworthy team of professionals. I would highly recommend them as a highly competent, cost-effective development team.

Tim Smith
Tim Smith

EVP/COO, Critical RF Inc, USA

rating

Right from the start Unicsoft inspired confidence. They quickly identified the steps necessary to achieve our desired result and gave us regular updates on their progress.

Cody Thornton
Cody Thornton

Assistant Property Manager, Conscience Bay Company, USA

rating

Unicsoft’s ability to deliver high-quality development work on time led to an ongoing partnership. The team met aggressive deadlines and adapted to the client’s work style as needed. Clear communication, proactive decision-making, and a customer-oriented approach are hallmarks of this project.

Konstantin Anissimov
Konstantin Anissimov

Former CTO, 4B Group

rating

The engagement helps the client provides a high level of value to their customers. Unicsoft successfully picked up on the nuances of the project and adapted to the working style of the client. The team is hard-working and innovative.

Sunil Tom Jose
Sunil Tom Jose

Director of Engagement, AlphaWallet

rating

I’d recommend Unicsoft because I felt their engagement and understanding of our business. They offered the best solution provision of what we were looking for. They were very responsive to the requests, very flexible just going in flow with our changes.

Alan Ball
Alan Ball

Managing Partner, Octagon, UK

rating

Our engagement with Unicsoft was very satisfying. They reported everything and delivered the product on time. If there were any issues, they were discussed upfront. They didn’t wait for the problem to occur.

Harry Disseldorp
Harry Disseldorp

CEO, NRG Software Solutions

rating

We have been highly impressed by the close cooperation, pro-active team, and project execution within the schedule and budget. The intermediate results were demonstrated permanently and transparently every week. Enough attention was paid to documentation, which was really useful for our product's future scalability...

Konstantin Ivanov
Konstantin Ivanov

Chief Digital Officer (CDO) at Atlantic Group (AGL)

rating

We were able to quickly grow our staff. As a startup, we couldn’t waste time looking to hire people in every part of our company. But by working with Unicsoft, we were able to rapidly grow our product line and engage with our core customers quicker.

Dmitry Dain
Dmitry Dain

Founder and CTO, Virgil Security, Inc.

rating

Unicsoft was ready to adapt to new challenges as needed even if that meant more learning on their end. The team was managed in a transparent way and we were able to follow the development both in terms of the code and in terms of the user load. Overall, I can say the project management was excellent.

Pavel Paramonov
Pavel Paramonov

Chief Science & Technology Officer, Ternary Intelligence

rating

Transparency in communication is a fantastic skill for a partner to have. In addition, Unicsoft proved their expertise among a vast range of technologies, which was emphasized by our client. The project manager was extremely responsive. He was available 24/7 to cover all questions and demonstrate progress as needed.

Andre Kholodov
Andre Kholodov

CEO, ADUK GmbH, Germany

rating

I've been much more satisfied with Unicsoft's work compared to other local providers in North America. They're dedicated, smart, and work with my business, rather than for my business. I've also been very impressed by the quality of their code overall.

Paulina Podgorska
Paulina Podgorska

Founder, SOSsitter, Canada

rating

A professional, highly skilled and dynamic team was assigned to my project who from day 1 was committed to my projects success! Even during the global lock-down period, they were responsive and quick to provide high-quality deliverables, thank you!

Morne Moolman
Morne Moolman

Founder, Concept Stage Project

rating

I can definitely recommend Unicsoft as a reliable partner. They have flexible working approaches, pleasant and dedicated staff, and always trying to solve the problem - not to redirect it. Reasonable price model, technically strong engineers, and quick and efficient staffing process.

Oleksandr Andrushenko
Oleksandr Andrushenko

COO, GFI

rating

Level of commitment, providing subject matter experts on short notice, and hospitality has given a very positive feeling towards Unicsoft personnel and their business processes.

Benny Low
Benny Low

Co-Founder, Xypher Pte, Singapore

rating

It was excellent. We have never been disappointed. Problems did arise, but Unicsoft maintains a wonderful platform for collaboration through which we found solutions. They really analyzed and tried to understand the business use of the tool I wanted to develop.

Imran Rehman
Imran Rehman

Owner, KOKORO, Austria

rating

The PM was always available and we didn't have any issues. The team was flexible and they were offering solutions based on their experience. The developer was going the extra-mile and based on the internal feedback from the in-house team, everyone was extremely satisfied to work with him from the technical perspective as well.

Inga Viznytsia
Inga Viznytsia

Product Manager, Media Production Company

rating

The people we have worked with at Unicsoft have been knowledgable with our codebase, and have contributed code and suggestions that our entire team finds valuable. We have used Unicsoft with both short term (~1-2 month) and long term (6 month+) projects and in each case, the engineers we work with take ownership and pride in the code that they write. I can't recommend them enough.

Arjan Singh
Arjan Singh

Director of Software Engineering at FIGS

rating

We needed a team to bring our idea to life within tight deadlines. We chose Unicsoft for broad expertise and involvement in the project from the beginning. Unicsoft proved deep expertise, readiness to do the extra miles to build the solution within tight deadlines.

Mehdi Bellatig
Mehdi Bellatig

Founder at FranceVerif

rating

Unicsoft were key to our engineering development in early phases. They were extremely professional, knowledgeable and acted as a true partner to help build our iOS and Web applications. A number of their team members rose to the challenges and I would like to make specific mention of their iOS developers & account management team who treated our needs as theirs and ensured a timely & superlative output.

Prashant Kumar
Prashant Kumar

rating

I was working for a big software development company when Unicsoft was helping us to cover our internal and external needs with all kinds of services needed for the implementation of our projects. They provided us with specialists with the required maturity level and technical ability according to the request. They are always engaged in the process and consult us regarding the best way to obtain the most realistic solution.

Viktoriia Kovryzhenko
Viktoriia Kovryzhenko

Office Manager

rating
/

Enjoy the full range of smart contract security audit services

We follow the Solidity Style Guide and Ethereum Smart Contract Security Best Practices.

We follow the Solidity Style Guide and Ethereum Smart Contract Security Best Practices. Unicsoft provides security audits using a combination of manual and automated tools as well as techniques to identify and simulate the exploitation of vulnerabilities in their target environment.

General documentation and logic analysis
General documentation and logic analysis
Analyze the design documentation, application architecture, and evaluate the code for basic compliance with the documented logic.
Brief smart contract code review
Brief smart contract code review
Quick analysis of smart contract functionality, main classes .sol, etc .; analysis of cryptography, third-party modules, and the library structure.
Extended analysis of the blockchain application
Extended analysis of the blockchain application
We conduct a detailed review of each of the app’s features, all requests, input fields, and integrated modules.
In-depth error scanning
In-depth error scanning
Scan the application at the necessary source and binary levels to identify potential violations of coding guidelines and security practices.
Penetration testing
Penetration testing
Unicsoft testers specializing in blockchain and smart contracts perform an extensive manual examination to find vulnerabilities and system exploits.

What is gained as a result of this audit?

The blockchain smart contract audit deliverables include an in-depth report that covers:
    1. Executive resume
    2. Project specification
    3. Audit methodology outline
    4. Findings and recommendations
    5. Conclusions
    6. Action steps to follow
After the audit, you will not only learn about the risks, you will be ready to immediately eliminate them according to the plan developed for you.

Proven professionals in blockchain and smart contract security

Artem
Evgeniy
Oleg
Artem
Technical Lead
Developed a cryptocurrency backed by the Swiss Francs, built architecture for the enterprise supply chain management system based on blockchain.
Evgeniy
Head of Project Management and Delivery
Helped manage enterprise-level projects worth over 30 million USD, managed projects with 10-year TCO of 25 million USD.
Oleg
Blockchain and Machine Learning Architect
Implemented customer-side Hyperledger INDY solutions at a Canadian bank, developed solution architecture for Emirates.
Unicsoft is a one-stop destination for organizations looking for a qualified partner to audit existing smart contracts.

Read Our Latest Insights

Blockchain in Banking: Vivid Advantages and Risks to ...

Corporations are implementing blockchain in healthcare, logistics, and the gaming industry. However, the most popular niche for blockchain ...
Learn more

What is DeFi: Benefits and Examples.

In 2018, the DeFi sector revitalized the cryptocurrency industry as it delivered an entirely new ecosystem for conducting finance and ...
Learn more

How to Make a Stablecoin: a Quick Guide.

Cryptocurrencies have proven their utility in a number of industries and use cases. However, they are still subject to high volatility, ...
Learn more

Share With Us Your Blockchain Case!

Get a Free Consultation!

You will receive a reply within 24 hours.

    *As a result of submitting completed “Contact Us” form, your personal data will be processed by Unicsoft. We are committed to respecting your privacy. Read our Privacy Policy.
    Meet us in the UK Aleksey Zavgorodniy

    Aleksey Zavgorodniy

    Chief Executive Officer

    Telephone +44 204 577 07 94

    Address 2nd Floor, 6 Market Place, London, Fitzrovia, W1W 8AF
    Meet us in Ukraine Aleksey Zavgorodniy

    Aleksey Zavgorodniy

    Chief Executive Officer

    Telephone +38 091 481 99 97

    Address 39 Ivana Kudri str, office 11, Kyiv 01042
    Meet us in Singapore Glib Konotop

    Glib Konotop

    Director Of Business Development

    Telephone +6531594908

    Address The Signature, 51 Changi Business Park Central 2, Level 04-05, Singapore, 486066
    Meet us in Finland Dmytro Naumenko

    Dmytro Naumenko

    Business Development Director for Northern Europe

    Telephone +358145473477

    Address Innova 1, Piippukatu 11, 40100, Jyvaskyla
    Meet us in the Netherlands Dmytro Naumenko

    Dmytro Naumenko

    Business Development Director for Northern Europe

    Telephone +3197010280650

    Address c/o Fluwelensingel 27a, 2806 CB Gouda
    Meet us in Germany Glib Konotop

    Glib Konotop

    Director Of Business Development

    Telephone +498995457096

    Address Bahnhofstr. 4a Planegg 82152 Munich, Germany
    Other countries