Smart Contract & Web 3 Security

Smart contract security audits and penetration testing of your Web 3 applications.

Any Web 3 project such as blockchain apps, DeFi, NFT, wallets and others is vulnerable to hacks. The more successfully your project grows, the more attractive and profitable target for hackers you become. One effective attack can cost you a fortune and a reputation that you can't get back.

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Why does a Web 3 project need penetration testing?

Vulnerabilities

occur in blockchain and smart contracts

$3.2 billion

stolen in crypto in 2021 according to CryptoSlate

Security

must be proactive, we will help to detect weak points in time

What we assess in Web 3 projects

Our security consultants are experienced certified professionals analysing the latest Web 3 security trends. We cover:

  • Smart contract vulnerabilities (reentrancy, integer overflow, access control flaws)
  • DeFi protocol security (flash loan attacks, oracle manipulation, liquidity pool exploits)
  • Token and NFT contract audits (minting logic, transfer restrictions, metadata integrity)
  • Wallet and key management security
  • Frontend and API layer vulnerabilities (XSS, injection, broken authentication)
  • Bridge and cross-chain interaction risks
  • Business logic flaws and privilege escalation

We simulate real-world attack scenarios targeting both on-chain and off-chain components of your project.

What is the process?

1. Quotation

We set up an initial meeting to discuss the necessary scoping questions, then we assess the scope together with auditors, and return to you with a detailed quote.

2. Security Audit

Our experienced certified experts conduct in-depth manual penetration testing and security audits of your Web 3 project. Throughout the audit, we always keep you informed of what is happening and share critical findings immediately.

3. Initial Report

Our reports contain detailed description of all discovered vulnerabilities, steps to reproduce them, evidence, worst-case scenarios, risk level and recommendations for fixing them.

4. Remediation Check

We provide complimentary remediation check of vulnerabilities fixed by your team, to ensure that your system no longer contains these holes.

5. Final Report

In the final report we add notes about closed vulnerabilities and update the overall security assessment of your project. You can demonstrate this report to confirm the security of your Web 3 system.

Why Dhound?

Compliance-Focused Expertise

Compliance-Focused Expertise

We work with SaaS, fintech, and regulated companies, helping them meet modern security requirements and prepare for regulations such as DORA, EU Cyber Resilience Act (CRA), AI Act, as well as industry standards like PCI DSS, SOC 2, HIPAA, UAE SCA, and others.

AI-Driven Penetration Testing

AI-Driven Penetration Testing

We combine deep manual expertise with AI-driven techniques to deliver efficient, high-quality security assessments - providing clear, actionable insights that support real business decisions.

Certified Security Experts

Certified Security Experts

Our team consists of experienced security professionals with globally recognised certifications, including CREST, CISSP, OSWE, CSCA, and others - ensuring trusted and high-quality delivery.

What our customers say

We were very impressed with the skills and knowledge of Dhound security experts, as well as how effectively they built communication with everyone, and how they made the whole penetration testing process very simple and clear for us.

uxpressiaYuri Vedenin, Founder at UXPressia

We enjoyed working with Denis. He's a true professional. The collaboration gave us a lot including a system audit and PHP vulnerability check-up. Dhound also helped us with management issues. For example, now we have regular security checklist sessions and manage our risks.

12goEvgeny Olejnik, CTO at 12Go Asia

Happy with the service and the report, it was great and from my understanding we've already taken action on some of the previously dismissed items you shed the light on. All staff I have dealt with were very helpful.

openwareDenys Tun, Director Of Business Development at Openware

Contact our team to get a quote for your project and proactively take care of its security