Given a scenario where a new open-source library is proposed for integration into our proprietary software, outline a technical due diligence process to assess its licensing compatibility, security vulnerabilities, and potential for intellectual property infringement, including steps for automated code scanning and manual legal review.
technical screen · 5-7 minutes
How to structure your answer
MECE Framework:
- Licensing Compatibility (Legal & Technical): a. Automated Scan: Utilize FOSSology/Black Duck to identify licenses (MIT, GPL, Apache 2.0). b. Manual Review: Legal counsel assesses compatibility with proprietary license, copyleft implications, and attribution requirements.
- Security Vulnerabilities (Technical): a. Automated Scan: Employ SAST/DAST tools (e.g., SonarQube, Snyk) for known CVEs, insecure coding practices. b. Manual Review: Security engineers perform code audit, penetration testing, and dependency graph analysis.
- Intellectual Property Infringement (Legal & Technical): a. Automated Scan: Use tools for code similarity detection (e.g., Source Auditor) to identify potential patent/copyright overlaps. b. Manual Review: Legal counsel investigates identified overlaps, prior art, and potential trademark issues. Document all findings and risk mitigation strategies.
Sample answer
Our technical due diligence for a new open-source library follows a structured MECE framework, ensuring comprehensive coverage of licensing, security, and IP. For licensing, we first deploy automated tools like FOSSology or Black Duck to generate a Software Bill of Materials (SBOM) and identify all associated licenses. This is followed by a manual legal review to assess compatibility with our proprietary software, identify any copyleft obligations (e.g., GPL, AGPL), and ensure proper attribution.
Security vulnerability assessment begins with automated Static Application Security Testing (SAST) and Dynamic Application Security Testing (DAST) using tools such as SonarQube or Snyk to detect known CVEs and common weaknesses. Our security engineers then conduct a manual code audit, dependency analysis, and targeted penetration testing.
Finally, for intellectual property infringement, we use code similarity detection tools to identify potential overlaps. Legal counsel then performs a detailed manual review, investigating potential patent or copyright infringements, prior art, and trademark conflicts. All findings are documented, risks are categorized, and mitigation strategies are developed collaboratively with engineering and product teams to ensure compliance and minimize exposure.
Key points to mention
- • Layered approach (automated + manual review)
- • Specific tools for license scanning (e.g., Black Duck, FOSSA, SPDX)
- • Specific tools for security scanning (e.g., SonarQube, Veracode, Snyk)
- • Distinction between license compatibility and IP infringement
- • Copyleft vs. Permissive licenses and their implications
- • Importance of dependency scanning (transitive dependencies)
- • Role of legal counsel in interpreting ambiguous terms
- • Mitigation strategies for identified risks (e.g., architectural isolation, negotiation)
- • Documentation and continuous monitoring
Common mistakes to avoid
- ✗ Solely relying on automated scanning without manual legal review for complex licenses or IP issues.
- ✗ Neglecting to scan transitive dependencies, leading to hidden licensing or security risks.
- ✗ Failing to document the due diligence process and decisions adequately.
- ✗ Underestimating the impact of copyleft licenses on proprietary codebases.
- ✗ Not establishing clear ownership and responsibility for ongoing monitoring of integrated OSS.