
About @d3bo
I’m passionate about cybersecurity, especially the offensive side. I like to understand how things work on the inside and find ways to break them, and the more I learn, the more I realize how much I still have to discover.
In my free time I like to dig into pwn challenges. Binary exploitation hooks me because it forces me to understand in detail how programs work, and I always end up learning something new.
I’ve been writing on my blog, https://d3bo.eu, for a few years now, where I publish writeups, notes and things I learn along the way.
Projects

SoterCTF
soterctf.com
CTF hosting platform. It has hosted a CTF with 300 participants from all over the world and already has 700 registered users.

pawlib
github.com/d3b0o/pawlib
C library for exploit development and CTFs, inspired by pwntools. It is still at an early stage: the idea is to keep adding features little by little.
Certifications

COAE (Certified Offensive AI Expert)
HackTheBox
September 2026

CRTA (Red Team Analyst)
Cyber Warfare Labs
November 2025

eCPPT (Certified Professional Penetration Tester)
INE Security
July 2024

eWPT (Web Penetration Tester)
INE Security
September 2023

eJPTv2 (Junior Penetration Tester)
INE Security
April 2023
On-site CTFs

HackMex 2025
October 2025 · Mexico · 3rd place

CaixaBank Tech CTF 2025
May 2025 · Barcelona · 2nd place
Barcelona Cybersecurity Congress (BCC) 2025

Catskills 2025
April 2025 · Barcelona · 3rd place

CaixaBank Tech CTF 2024
May 2024 · Barcelona · 3rd place
Barcelona Cybersecurity Congress (BCC) 2024