Presentation

About Me

My name is Antoine Romet, and I am currently a third-year Cyberdefense Engineering student at ENSIBS in Vannes, France. I am completing my degree through an apprenticeship, working as a Deputy CISO at iAdvize. I come from a Networks & Telecommunications background, which gives me a solid technical foundation in systems, networking, and cybersecurity.

Throughout my studies, I have developed both theoretical and practical skills, notably through projects such as a penetration test of a fictional company, a network access control project, and the deployment of a secure network infrastructure. These experiences strengthened my understanding of risk analysis, infrastructure security, and offensive techniques.

I am passionate about cybersecurity, with a particular interest in network/system architecture and digital forensics, which I actively explore through CTF challenges. Outside of work, I enjoy running, table tennis, cycling, and photography.

View articles

Curriculum Vitae

Education

Sept 2024 - Present

Cyberdefense Engineering Degree Apprenticeship

ENSIBS (École nationale supérieure d'ingénieurs de Bretagne Sud) - Vannes, France

Courses: Network and communications security, cybersecurity, infrastructure, penetration testing, Linux hardening, scientific literature review, cryptography mathematics.

Projects: Penetration test of a fictional company, risk analysis scenario, secure network infrastructure deployment, research on autonomous vehicle safety and security.

Certifications: Le Robert, CyberPki, TOEIC 930 points

2021 - 2024

Bachelor of Engineering Degree Apprenticeship, Networks & Telecommunications (Cybersecurity)

IUT de La Roche-sur-Yon - Nantes Université - La Roche-sur-Yon, France

Courses: Networking fundamentals, Windows/Linux systems, virtualization, programming (C, Python, PHP, scripting), databases, mathematics, pentesting, telecommunications, risk analysis, incident response.

Projects: Network access control, incident response and cyber investigation, complex network configuration, wireless video transmission design.

Certifications: ANSSI MOOC, AWS Cloud Quest (Cloud Practitioner)

2021

Baccalaureate STI2D (Information Systems & Digital)

Lycée Jean de Lattre de Tassigny - La Roche-sur-Yon, France

Result: Graduated with highest honors (jury commendation).

Professional Experience

Sept 2024 - Present

Cybersecurity Apprentice

iAdvize - Nantes, France

Missions: Governance (ISMS management, access reviews, audit gap follow-up, vendor reviews), bug bounty program management on YesWeHack (hunter environment setup, triage, reproduction and vulnerability assessment), application security (comparison of several solutions and implementation of SAST/SCA/Secret scanning), user awareness (phishing campaigns and training through the RIOT platform), Python scripting and development of a back-end account cleanup tool.

Key Skills: Governance, Bug bounty, AppSec (SAST/SCA/Secrets), Awareness, Python automation

Soft skills: adaptability, communication, initiative

Sept 2023 - Sept 2024

Apprentice Systems & Network Administrator

Vendee Concept - La Roche-sur-Yon, France

Missions: PowerShell scripting, cybersecurity through internal audits and user awareness, Windows administration (AD, Azure AD, WSUS), network operations with Fortigate firewalls, Wi-Fi, Alcatel and Cisco switches, Nutanix hypervisor administration, user support, and monitoring with Zabbix.

Key Skills: Windows/Azure AD, Firewalls/Wi-Fi, Automation, Monitoring

Soft skills: autonomy, initiative, critical thinking, documentation

Apr 2023 - Jun 2023

Systems & Network Administrator Intern

Almeria Solutions Informatiques - Mouilleron-le-Captif, France

Missions: Eight-week internship covering server installation (RDS, Windows Server), WatchGuard firewall setup, Windows systems administration with Active Directory, antivirus rollout (Panda, Trend Micro, EDR), backups with Veeam, scripting (batch, PowerShell), maintenance tasks and troubleshooting, and hyperconvergence with DataCore/ESXi.

Key Skills: Scripting, System Administration, Infrastructure Management

Articles

Article2026

Analysis of a macOS infostealer campaign

Technical analysis of a macOS infostealer campaign impersonating Homebrew through Google Ads.

Article2026

PurpleC2: Building a Custom C2 and Understanding How to Detect It

A Purple Team laboratory study of C2 detection using network and endpoint telemetry from Sysmon, Wazuh, and Zeek.

Writeups

Writeup2026

HTB Sherlock - GhostTrace

SOC investigation of an Active Directory compromise using Windows logs, Sysmon and forensic artifacts.