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DrexxLaggui/README.md

Drexx Laggui, CISSP · CISA

“Transforming digital traces into reliable, court-ready evidence.”

Introduction

This is Drexx Laggui, a digital forensics and cybersecurity professional based in the Philippines. With certifications in CISSP and CISA, I apply rigorous investigative methods and advanced technologies to support law enforcement, legal proceedings, and standards development.

Social Layer: Key Contributions

  • Digital Forensics & Cybercrime Investigations

    • Employed OSINT and SIGINT to locate and apprehend India’s most wanted fugitive and Australia’s most notorious child abuser within the Philippines.
    • Disrupted Southeast Asian online gambling syndicates through targeted investigations.
    • Utilized cryptocurrency forensics to track organized-crime networks and assisted in resolving and prosecuting a bomb-threat perpetrator.
    • Conducted mobile phone and computer forensics under contract with the Philippine Supreme Court to support the prosecution of a corrupt judge.
    • Authenticated the results of the Philippines’ first Automated Election System (2010).
    • Attributed criminal hacking incidents against Philippine government websites that led to unauthorized ATM withdrawals, fund transfers, and credit-card tampering.

  • Standards & Auditing

    • Auditor of ISO/IEC 27001 (ISMS), COBIT, and Common Criteria (ISO/IEC 15408) standards implementations.
    • Pioneered the Philippines’ Digital Forensics Manual in collaboration with the Cybercrime Investigation and Coordinating Center (CICC), Department Of Justice - Office Of Cybercrime (DOJ-OOC), and Commission on Human Rights (CHR).
    • Adviser to the Philippine delegation at the UNODC Ad Hoc Committee on Cybercrime.

  • AI & Digital Evidence Innovation

    • Chair, AI Committee, U.S. Scientific Working Group on Digital Evidence (SWGDE).
    • Contributing member, ISO/IEC JTC 1/SC 42 WG3 on AI Trustworthiness.
    • Lead developer of open-source AI-based digital forensics systems (LLMs & RAG) for CICC.
    • Expert delegate, UNODC 2025 Organized Fraud program.
    • Expert representative of the Philippines at the 2025 UNIDIR symposium on AI in warfare.
    • Recognized expert witness in trial courts for election fraud, banking fraud, securities fraud, and internal investigations.
    • Founding Member, Joint Cyber Security Working Group (JCSWG), U.S. Embassy Manila.

Logical Layer: Network & Protocol Expertise

  • Communication Domains: Fixed and Mobile
  • Protocols: IP • TCP • UDP • HTTP/S • DIAMETER • RADIUS • SS7 • OpenRAN

Physical Layer: Systems & Standards

  • Operating Systems: Solaris • HP-UX • AIX • Linux • Windows • macOS • iOS • Android
  • File Systems: NTFS • XFS • EXT3/4 • exFAT • FAT32 • ZFS • HFS+ • APFS • UFS
  • Infrastructure Standards:
    • ISO/IEC 22237 (Data Center)
    • ISO/IEC 31307 (CCTV)
    • ISO/IEC 11801 / TIA-568 (Cabling)

Education & Certifications

  • Certified Information Systems Security Professional (CISSP)
  • Certified Information Systems Auditor (CISA)

Contact

Thank you for your interest. I welcome any inquiries regarding collaboration or consultation.

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