Ktn
Ktn
Developer & Pentester · France 🇫🇷
Who am I

I'm Ktn, a French developer and pentester passionate about cybersecurity. I spend most of my time breaking things legally — CTF challenges, web exploitation, and building secure software. I'm also the founder of Orbyte, an encrypted messaging platform built from scratch in 2026.

What I do

Offensive security, web exploitation, Python automation, bot development, and web projects. I compete on Root-Me and TryHackMe, and I'm always looking for new challenges to push my skills further.

Goal

Become a cybersecurity engineer or pentester, and eventually build my own company in tech and security.

Favorite languages

Python, Node.js

Favorite CTF categories

Web Server / Web Client

Certification I'm aiming for
OSCP — Offensive Security Certified Professional
OSCP
OSCP
Offensive Security Certified Professional

One of the most respected hands-on certifications in cybersecurity. A 24-hour live penetration testing exam on a real network of vulnerable machines — no multiple choice, pure hacking.

Outside of hacking

I play video games.

Why cybersecurity?

Because it's a field that evolves constantly and I find it genuinely fascinating. I love understanding how systems work and finding their weaknesses.

Biggest challenge

Staying consistent — it's a field where you have to keep learning and practising every single day.

What is Orbyte?

An end-to-end encrypted messaging platform with DMs, servers and channels — built for people who actually care about their privacy.