Hi, Iām Lee
Iām an IT Security Officer based in Manila. I began my security journey as a Threat Response Engineer, analyzing Windows and macOS binaries down to the bits and bytes. Over time, I moved into Incident Response, taking on projects involving automation and asset management. I now dedicate my time to Detection Engineering where I help my organization improve its detection and response capabilities against the ever evolving threat landscape.
I created this site to maintain a personal technical blog and share security topics that I find particularly interesting. Be sure to check out my latest post
here
.
Outside of cybersecurity, I'm an avid reader, fitness enthusiast, novice photographer and InfoSec student.
My Background
š¼ Work Experience
-
Asian Development Bank
Associate IT Officer (Technical Security)
July 2025 ā Present- Handle and respond to security incidents.
- Perform QA on analytic rules and incident handling.
- Manage and maintain infrastructure tools and agents.
- Review and improve incident response processes.
IT Security Analyst (via Talentium Inc.)
Aug 2022 ā July 2025 ā¢ 3 years- Automates tasks with Power Automate, Python and Ansible.
- Manages and removes unauthorized software via PowerShell and CrowdStrike.
- Streamlines data flow across ServiceNow, Intune and Purview
- Performs and manages baseline scans on Linux and Windows systems
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Trend Micro
2 years 8 monthsMac TRT Engineer
Nov 2021 ā Aug 2022 ā¢ 10 months- Analyze Mac threats and creates signature based rules for detection.
- Develops knowledge of macOS internals and Mach-O binary structures.
- Analyzes malware using macOS security tools and share the findings with the team.
Threat Response Engineer - File Detection Service
Aug 2020 ā Aug 2022 ā¢ 2 years 1 month- Reverse engineers files and creating signature-based rules.
- Handles infection cases by identifying malicious objects, registry entries, WMI and scheduled tasks.
- Advises customers on malware prevention, responds to queries and shares findings.
Threat Experts Univesity - Trainee
Jan 2020 ā Aug 2020 ā¢ 8 months- Learned reverse engineering, assembly language, and malware analysis for binaries.
- Gained skills in network traffic, URL/email analysis, and identifying security threats.
- Applied threat intelligence frameworks (Cyber Kill Chain, Diamond Model, MITRE ATT&CK)
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DICT Philippines
Internship Trainee
Apr 2018 ā May 2018 ā¢ 2 months- Monitor network access points every two hours and log alarms with time and date.
- Identify the causes of outages such as connectivity loss, disabled repeaters, or power issues.
- Use Cisco Meraki Dashboard to analyze and troubleshoot network problems.
š Education
-
De La Salle University
Master of Science in Information Security
Manila, Philippines 2023 - PresentUniversiti Teknologi Malaysia
UTP-DLSU Familiarization Program Johor Bahru, Malaysia June 2024 -
Technological University of the Philippines
Bachelor of Science in Electronics Engineering
Manila, Philippines 2013 - 2019
š Certifications
Blue Team
Level 1
Security Blue Team
Certified in
Cybersecurity
ISC2
CompTIA
Security+
CompTIA
š„ļø Virtual Labs
Note: Write-ups will be published once the box is retired.