Currently working on — Orbyte & CTF challenges

Ktn

Developer & Pentester

Developer passionate about cybersecurity and penetration testing. I explore systems, hunt for vulnerabilities, and break things — the legal way.

Projects

Orbyte

Encrypted Messaging Platform

Live

End-to-end encrypted messaging for people who value privacy. Encrypted DMs, community servers and channels — modern, minimal, secure.

orbyte.lol discord.gg/orbyte

Hackuten

Cybersecurity Learning Platform

Live

Cybersecurity learning platform built by enthusiasts, for the community — courses, realistic lab machines and CTF challenges, entirely free. Co-founded in 2025 — currently ranked #3 in France.

hackuten.com discord.gg/hackuten

Timeline

2026

Orbyte — Founder

Built and launched Orbyte, an end-to-end encrypted messaging platform.

2025

Hackuten — Co-founder

Co-founded Hackuten, a free cybersecurity learning platform. Currently ranked #3 in France.

2025

CTF & Pentesting

Active participation in CTF competitions on Root-Me and TryHackMe. Focus on web security and OSINT.

2024

Started Cybersecurity

Began learning offensive security, web exploitation and scripting.

Skills

Languages

Python Node.js Bash JavaScript HTML / CSS

Security

Burp Suite Nmap Metasploit SQLmap Gobuster Wireshark

Systems & Tools

Linux Windows Docker Git

Platforms

root-me.org/Ktn

tryhackme.com/p/sql.ktn

Blog

Articles & Writeups

CTF writeups, security research and dev articles.

CTF Highlights

Full black-box penetration testing challenge. Enumerate services, crack credentials, pivot through the internal network and escalate to root.

Windows Active Directory environment. Kerberoasting, BloodHound enumeration and full domain compromise.

Compromise a perimeter host and pivot through the internal network using advanced lateral movement techniques.

Gain unauthorised access to Iron Corp's internal systems through a series of chained exploits.

TryHackMe Medium

Exploit a PHP application via Local File Inclusion then break out of a Docker container to own the host.

TryHackMe Medium

Shellshock vulnerability and kernel exploitation to escalate privileges on a Ubuntu machine.

Root-Me Advanced

ELF x64 — Shellcoding

Binary exploitation — craft custom shellcode for a 64-bit ELF binary, bypassing protections to gain code execution.

Root-Me Advanced

Server-Side Template Injection in a Java application. Identify the template engine and craft a payload for RCE.

Root-Me Advanced

SQL Injection — Blind

No error output. Extract database contents character by character using boolean-based blind injection.

GraphQL — Injection

Abuse a GraphQL endpoint to perform introspection and inject malicious queries to extract sensitive data.

LDAP Injection — Auth

Bypass an LDAP-based authentication mechanism using injection techniques to gain unauthorised access.

PHP — Type Juggling

Exploit PHP loose comparison to bypass authentication — a subtle but critical language quirk.

Contact

Want to get in touch? Reach out through any of these channels.

LinkedIn sql-ktn

Instagram @sql.ktn

Discord sql.ktn

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