Jean-marie Bourbon
CyberSecurity Expert Founder at Bourbon Offensive Security Services
Troisvierges, Diekirch, Luxembourg
Summary
👤
Senior🎓
Top SchoolJean-marie Bourbon is a CyberSecurity expert and founder with 13 years of hands-on offensive and defensive security experience across European telecom, consulting, and boutique offensive security firms. He led and scaled red/purple teams at POST Luxembourg and operated as a senior red teamer delivering TIBER-level adversary simulations, vulnerability research and exploit development for high-security environments. As founder of Bourbon Offensive Security Services he combines pragmatic, ground-level testing with strategic risk management for enterprises and public institutions. His Github work demonstrates deep practical expertise in penetration testing and defense evasion, including AMSI bypasses via PowerShell in-memory techniques and an OSINT Intelx script to hunt data leaks. Jean-marie is a seasoned trainer and speaker with multiple published CVEs and certifications (OSCP, OSCE, CEH), bringing a rare mix of technical R&D, physical pentesting and client-facing project leadership. Based in Luxembourg, he’s known for custom, no-nonsense security solutions that prioritize operational impact over slideware.
13 years of coding experience
3 years of employment as a software developer
OSCE, OSCE at Offensive Security Bachelor's degree Network and System Administrator, Bachelor's degree Network and System Administrator at IPS formationOSCP, OSCP at Offensive SecurityCEH - Certified Ethical Hacker - v8 Penetration testing, CEH - Certified Ethical Hacker - v8 Penetration testing at EC-Council University
Italian, French, English, Luxembourgish
Github Skills (6)
powershell10
penetration-testing10
security10
python9
reverse-engineering9
osi9
Programming languages (4)
Github contributions (5)
kmkz/Pentesting
Mar 2018 - Nov 2020
Tricks for penetration testing
Role in this project:
Security Engineer
Security EngineerContributions:68 commits, 69 pushes, 1 branch in 2 years 8 months
Contributions summary:Jean-marie primarily focused on penetration testing techniques and defense evasion. They developed and updated PowerShell scripts to bypass AMSI (Antimalware Scan Interface) and explored different methods for achieving this, including in-memory patching and using an egghunter technique. Furthermore, they worked on an OSINT script utilizing the Intelx platform to identify potential leaks, demonstrating a strong understanding of offensive security and evasion tactics.
testingpenetrationpenetration-testingtrickspentesting
kmkz/Talks
Mar 2013 - Nov 2020
Some talks about security
Contributions:37 commits, 14 pushes in 7 years 9 months
security
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