Ruyynn
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Security researcher focused on uncovering vulnerabilities through ethical practice and responsible disclosure — protecting systems, not exploiting them.
The Mind Behind the Terminal
I'm Natanael, known online as Ruyynn — a self-driven security researcher from Indonesia with a deep obsession for finding what others overlook.
My journey into cybersecurity wasn't a straight path. It started with curiosity — wanting to understand how systems work underneath the surface. That curiosity evolved into a methodology: structured reconnaissance, systematic enumeration, and rigorous responsible disclosure.
I don't just scan and report. I think like an attacker to defend like a professional. Every vulnerability I find is handled through proper disclosure channels — because the goal is always to make the internet safer, not to cause harm.
Recognized by multiple CSIRT institutions in Indonesia for responsible disclosure contributions, I'm committed to making real-world impact through ethical security research.
Arsenal & Expertise
Cyber Security
Programming
Web Development
Built in the Dark
GH05T — GhostIntel
An automated OSINT and reconnaissance framework built for efficient intelligence gathering on web targets. GhostIntel streamlines the recon phase by combining multiple data sources into a unified, actionable report.
Recon Automation Suite
A collection of scripts and tools designed to automate the reconnaissance phase of penetration testing. Covers subdomain enumeration, port scanning, and service fingerprinting.
Security Recognitions
Acknowledged by official government CSIRT institutions in Indonesia for responsible vulnerability disclosure.
Security Recognition — Military Institution
- Validated vulnerability report submitted
- Responsible disclosure accepted by TNI AD
- Officially acknowledged by Kartika CSIRT
Vulnerability Acknowledgement
- Report acknowledged & validated
- Responsible disclosure process followed
Responsible Disclosure Verified
- Disclosure accepted and verified
- Security impact confirmed
Credentials & Training
Introduction to Information Security
CyberAcademy.idEthical Hacker For Dummies
Komdigi AcademyIntro to Cyber Security & Career Awareness
Komdigi AcademyBelajar Dasar AI
DicodingWriteups & Research
OSINT for Beginners: What You Need to Know
A comprehensive introduction to Open Source Intelligence — covering methodologies, tools, and ethical considerations for beginners entering the security field.
Read ArticleHTTP Status Codes You Never Knew Existed
Diving deep into obscure HTTP status codes that most developers never encounter — and how they can reveal valuable information from a security perspective.
Read ArticleLet's Secure Your Website
Looking for a security assessment, responsible disclosure partnership, or want to discuss a project? Let's talk.