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Security Audit of P2P Platform for GDPR Compliance

Client:
A development company behind a P2P prediction platform
Industry:
Fintech solutions
Focus:
Protection of users’ personal and financial data, smart contract security
Main challenge:
Comprehensive security audit of the platform, including smart contracts, to prevent external attacks and financial losses
Market:
International financial market
Services provided:
Penetration testing, smart contract audit, code security review
Key Takeaways
  • Prevented PII exposure and logic abuse in critical flows
  • Delivered fixes to align with GDPR and security best practices
  • Identified 10 vulnerabilities, including 3 critical ones
  • Carried out OSINT analysis and cloud infrastructure security assessment
    • 48
    hours — time to fix critical vulnerabilities
    10
    vulnerabilities identified
    $300,000
    in potential losses prevented
    Security Audit of P2P Platform for GDPR Compliance
    Jun 27, 2025
    How can you protect a P2P platform from smart contract attacks? Before launching their product, the company turned to Datami to ensure security and GDPR compliance. We conducted a penetration test and a smart contract audit, identifying 10 vulnerabilities. This helped prevent a potential loss of $300,000 and ensured compliance with key security standards.

    An international company developed a P2P platform for predicting events in the fintech market. Thousands of users access the service daily through digital channels—web and mobile apps—entrusting it with their personal and financial data.

    Operating in a high-risk industry and subject to GDPR regulations, the company prioritizes security above all.

     

    Objectives and challenges
    The client initiated a comprehensive security assessment of the platform to eliminate risks of attacks on smart contracts and financial mechanisms that facilitate settlements between users.

    The goal was to check for critical vulnerabilities and GDPR compliance, and to provide recommendations for strengthening the security of smart contracts and transaction mechanisms, as well as improving the level of compliance.
     
    • Conducting black-box penetration testing of the entire system, a smart contract audit, and code security review
    • Checking for vulnerabilities such as SQLi, XSS, RCE, etc., and performing OSINT analysis of the company’s digital assets
    • Assessing the security of the cloud infrastructure and preparing a comprehensive technical report with findings and recommendations
       
    icon
    Security audit and testing
    Black-box penetration testing with smart contract and code security audit
    icon
    Vulnerability assessment
    Identification and risk analysis of vulnerabilities in the platform’s digital mechanisms
    icon
    Report and recommendations
    Detailed technical report describing identified threats and providing recommendations
    Datami Methodology: Security Assessment of a P2P Platform
    Our approach

    Datami conducted a full black-box penetration test, including a smart contract audit, code security review, testing for SQLi, XSS, RCE, OSINT analysis, and cloud infrastructure assessment.

    Both automated scanners and manual testing were used to ensure deep inspection of smart contracts, servers, APIs, cloud infrastructure, and transaction processing logic.

    Special attention was given to bet settlement mechanisms and access control systems.

    Black-box
    Black-box
    This approach made it possible to simulate a real external attack and identify vulnerabilities without access to internal information.
    Key project stages and solutions

    During the project, Datami conducted a comprehensive assessment of all platform components, including smart contracts, APIs, and cloud infrastructure.

    Various attack scenarios were simulated, particularly targeting transaction logic and smart contract interactions. The team adapted the process to fit the real-world constraints of the black-box approach.

    • Preparation
      Review of documentation, test planning, and identification of critical attack vectors.
    • Security assessment
      Comprehensive black-box penetration testing, smart contract audit, code security review, testing for SQLi, XSS, and RCE, OSINT analysis, and cloud infrastructure security evaluation.
    • Analysis and reporting
      Preparation of a detailed report describing vulnerabilities, associated risks, and step-by-step recommendations for mitigation.
    Cybersecurity starts with action
    How we can help you?

    Every cybersecurity case study we solve involves deep analysis, tailored solutions, and measurable results.
    Datami has already helped over 600 companies strengthen their digital defenses — and we can do the same for your business.
    Ready to take action?

    Let’s start with a free consultation!
    Results and recommendations
    Fewer critical risks — more confidence
    Results and recommendations

    At the beginning of the project, the security of the P2P platform posed serious risks: critical vulnerabilities in smart contracts and flaws in transaction processing logic threatened user fund losses and violations of security standards.

    During the black-box penetration test, Datami identified 10 vulnerabilities: 3 critical (in contracts and transaction mechanisms), 5 medium, and 2 low.

    The P2P platform received clear recommendations to improve cybersecurity:

    1. Eliminate logical vulnerabilities in smart contracts
    2. Strengthen access control and update software
    3. Implement automated security monitoring tools
    4. Conduct regular vulnerability assessments and smart contract testing

    After implementing the recommendations, the risk level was significantly reduced: critical vulnerabilities were eliminated, and the platform now complies with international security standards. Potential financial losses of up to $300,000 were successfully avoided.

    The project was completed in 4 weeks instead of the standard 6.

    The client resolved the critical vulnerabilities within 48 hours.

    Our certificates
    Key project outcomes

    Within just 4 weeks, the cybersecurity of the P2P platform was significantly strengthened: Datami conducted an in-depth audit and identified vulnerabilities, while the client implemented key security measures.

    The project was completed faster than the industry average, with risks of data breaches and attacks minimized.

    This case proves that high-tech platforms require independent audits to avoid financial and reputational losses.

    Area
    Before the project
    After implementation
    Security status
    High risk of smart contract attacks
    Risk level reduced, 10 vulnerabilities identified
    Critical vulnerabilities
    Vulnerabilities in transaction logic and smart contracts
    3 critical vulnerabilities fixed within 48 hours
    Access control
    Insufficient access control
    Strengthened controls, updated access policies implemented
    Security compliance
    Partial GDPR compliance
    Platform complies with international security standards
    Timeline
    Standard: 6 weeks
    Project completed in 4 weeks
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