Mario G. Brebu

Cybersecurity & Digital Forensics graduate with First Class Honours. Experienced in both red and blue team operations, with a focus on network setup and monitoring, penetration testing, digital forensics, and emerging technologies. Available and excited for any opportunities in the cybersecurity industry.

High Commendation for Sustainability | June 2025

TU Dublin · Tech-Ed for Good

Awarded a High Commendation award for meeting Sustainability Development Goals (SDGs) including sustainability, reliability, and legal and ethical considerations for my Bachelor's Thesis: IntellAI_Cam.

Implementation and Analysis of an AI-assisted Camera System

BSc Thesis — github.com/MGBrebu/intellai_cam
Designed and implemented a security camera system which automatically recognises and tags faces.

• Python, OpenCV, Deepface, SQLite.
• Compared the performance, accuracy, and resource requirements of traditional and AI-assisted facial recognition methods.
• Interpreted results to determine the current and future viability of AI applied to face recognition.

Open-Source SOC

Configured a functional SOC suite in a local virtual environment and tested it by simulating common
attack scenarios.

• Wazuh, ELK Stack, Suricata, Nftables, VMWare
• Configured additional VMs to act as attackers, victims, and network equipment.
• Attack Scenarios: Nmap recon, SSH bruteforcing, Nikto web scanning

Honeypot Deployment

Deployed multiple cloud instances of Telekom Security's T-Pot honeypot worldwide with the aim of
gathering and analyzing current threat actor data.

• T-Pot, ELK Stack, Suricata, Hetzner Cloud, DigitalOcean
• Gathered attack data from a wide variety of threat actors and compared it across instances.
• Focus on geolocation and attack methods of common threat actors.

Cisco Configuration Auditing and Reporting Tool

BSc Group Thesis and Project — github.com/MGBrebu/ccart
Implemented a CLI Python script and accompanying web interface to automatically detect security flaws within a provided Cisco IOS configuration file and suggest solutions.

• Python, Flask, Cisco IOS, Web Development
• Worked as part of a team of three.

Certified SOAR Analyst
Google · tumg07ssxn
Foundations of Operationalizing MITRE ATT&CK
AttackIQ · 6711
Intro to Splunk
Splunk STEP · EDU-769