Mohamed Helail Zaafarani

Mohamed Helail Zaafarani

Cybersecurity Consultant · Offensive Security & Red Teaming
CREST-Certified Penetration Tester · NESİL Teknoloji
Web · API · Active Directory · Internal Network
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Executive Summary

Mohamed Helail Zaafarani is a cybersecurity consultant at NESİL Teknoloji with a background in red teaming and offensive security, holding the CREST CPSA and CREST CRT certifications. He works on security testing of web applications, APIs, Active Directory environments and internal corporate networks. He carries out his work in line with the OWASP WSTG and NIST SP 800-115 methodologies, reporting identified security findings with verifiable technical evidence, realistic attack scenarios and actionable remediation recommendations.

Thanks to his ability to communicate in English and Arabic, he takes an active role in field work, technical meetings and reporting processes for clients across the MENA and Gulf regions.

Red TeamingOffensive SecurityWeb Application SecurityAPI SecurityActive DirectoryInternal Network PentestingOWASP WSTGNIST SP 800-115Technical ReportingVerification & Re-testing

Technical Skills & Project Role

Certification & Methodology

  • CREST CPSA and CREST CRT certifications
  • CRTO, eCPPT and eWPTX technical competencies
  • Systematic testing approach based on OWASP WSTG and NIST SP 800-115
  • Reporting findings with technical evidence, risk impact and actionable remediation recommendations

Web & API Security

  • Testing authentication, authorization, session management and input validation controls in web applications and APIs
  • Examining business logic flaws and object/function-level access control vulnerabilities
  • Conducting manual and tool-assisted security testing with black-box and gray-box approaches
  • Validating findings in a controlled manner and assessing their real business impact

Active Directory & Internal Network

  • Reviewing Active Directory configurations and identity/privilege relationships from a security perspective
  • Assessing privilege escalation, credential exposure and lateral movement risks
  • Analyzing network segmentation, access controls and attack paths between critical systems
  • Prioritizing the attack chains that pose the highest risk to the organization

Reporting & International Projects

  • Preparing executive summaries and technical findings at levels suited to different audiences
  • Prioritizing findings by likelihood, technical impact and business impact
  • Carrying out verification and re-testing after remediation
  • Providing technical meeting, field work and reporting support in English and Arabic
  • Contributing technically to client projects across the MENA and Gulf regions

Experience & Impact

Mohamed Helail Zaafarani works on penetration testing projects across web, API, Active Directory and internal network environments built on diverse technologies. His approach does not rely on automated scan results alone; it focuses on manual validation, understanding attack chains and demonstrating the real impact of findings on the organization.

The goal of his work is not merely to identify vulnerabilities, but to ensure that technical teams can reproduce a finding, that the risk is understood correctly and that the recommended measures are actionable. Every project is supported by traceable evidence, clear risk prioritization and a verification process.

At a Glance

As a CREST CPSA and CREST CRT certified cybersecurity consultant with a red teaming and offensive security background, he performs security testing across web applications, APIs, Active Directory and internal network environments. He carries out his work in line with the OWASP WSTG and NIST SP 800-115 methodologies, preparing executive and technical reports that contain verifiable technical evidence and actionable remediation recommendations.