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Cybersecurity & Networks

Jordan Poubeau.

Engineering student at EFREI, Networks & Security major.

Recent projects.

SQL Injection
Cybersecurity

SQL Injection - Hardening

SQL injection exploitation and remediation. Parameterized queries, bypass testing, PostgreSQL database.

PythonPostgreSQLSQL
pfSense
Network

Firewall pfSense + Snort IDS

pfSense deployment on VirtualBox, WAN/LAN configuration, Snort integration for intrusion detection.

pfSenseSnortFreeBSD
DevSecOps
Security

TPRM - Defense in Depth

DevSecOps pipeline (SAST, DAST, Trivy), EBIOS RM matrix, continuous hardening, third-party risk management.

TPRMOWASP ZAPJenkins
Crypto RSA
Cryptography

RSA Encryption

RSA implementation in Python, key generation, encryption/decryption, frequency analysis attack.

PythonRSACrypto
EBIOS Matrix
GRC

EBIOS RM Matrix

Risk criticality matrix (impact/likelihood), scenario classification, treatment plan.

EBIOS RMISO 27005GRC
PKI SSL
PKI

SSL Certificates - PKI

Certificate authority, CSR generation with OpenSSL, Apache SSL configuration, chain of trust.

OpenSSLApacheX.509
Lockpick
Cybersecurity

Lockpick - Password Strength Checker

CLI tool to analyze password strength: brute force estimation, RockYou blacklist, scoring and recommendations.

PythonRegexHashcat
Cybersecurity video
Awareness

Awareness video, 3rd prize

Password security awareness video, produced as a team at Université Sorbonne Paris Nord. Awarded 3rd prize out of 45 groups.

CybersecurityVideo editingAwareness

Finding what's broken where everything seems to work.

In 2017, WannaCry paralyzed hospitals and businesses worldwide. I was eleven, and one question struck me: how can such critical systems be so vulnerable? That question never left me.

What drives me in cybersecurity is the rigor it demands. Finding a vulnerability isn't about luck — it's a methodology, a way of thinking. Pentest labs with Kali Linux and Metasploit, CTFs on TryHackMe, Cisco certifications alongside my studies.

Currently pursuing an engineering degree at EFREI, majoring in Networks & Security, I keep pushing forward: offensive security, networking, and hands-on practice.

kali@jordan:~

Technologies I use.

Cisco Certifications.

Education.

2026 - present

EFREI Engineering School

Networks & Security major, work-study program

2024 - 2026

B.Tech in Networks & Telecommunications

Cybersecurity track, Université Sorbonne Paris Nord (IUT Villetaneuse)

2024

Baccalauréat STI2D - Lycée Fresnel

With honors, SIN option (Information Systems & Digital) / Math-Physics

Ongoing

Self-taught

Root-Me, TryHackMe: pentesting, CTF, vulnerability exploitation, forensics

Ping.

Open to opportunities: internship, work-study, technical projects. Let's talk.