Jeroen’s passion for cybersecurity began during his university years, where he became immersed in binary exploitation and web security. This curiosity led to his Master’s thesis on strengthening the security of Android WebViews and launched his specialization in mobile security. At NVISO, he leads mobile engagements and research, performing advanced mobile application security assessments and reverse engineering of RASP-protected applications and mobile malware. These experiences directly shape the course labs.
He holds multiple industry certifications and is a co-author of the OWASP MAS project, the industry standard for mobile application security testing, which contains the Mobile Application Security Testing Guide (OWASP MASTG), the Mobile Application Security Verification Standard (OWASP MASVS), and Mobile Application Security Weakness Enumeration (OWASP MASWE). Jeroen is also a faculty member of the SANS Technology Institute, an NSA Center of Academic Excellence in Cyber Defense, and a multi-year winner of the National Cyber League competition.
Beyond his professional work, Jeroen is deeply engaged in the cybersecurity community. He organizes the Cyber Security Challenge Belgium, contributes to local conferences, regularly presents at conferences all over the world, and writes many well-received blog posts. Known for his hands-on teaching style, he encourages students to continue learning beyond the course. Outside of cybersecurity, he enjoys piano, lockpicking, reverse engineering, and cycling.
Qualifications Summary
- Mobile Security Expert at NVISO
- SANS Certified Instructor and Author of SEC575
- GIAC Certified Penetration Tester (GPEN)
- GIAC Certified Incident Handler (GCIH)
- GIAC Web Application Penetration Tester (GWAPT)
- GIAC Mobile Device Security Analyst (GMOB)
- GIAC Reverse Engineering Malware (GREM)
- Burp Suite Certified Practitioner
- eLearnSecurity - Web Application Penetration Tester eXtreme (eWPTXv2)
- eLearnSecurity - Web Application Penetration Tester (eWPT)
- eLearnSecurity - Mobile Application Penetration Tester (eMAPT)
- Co-author of OWASP MSTG and MASVS
- Faculty member, SANS Technology Institute
- Organizer, Cyber Security Challenge Belgium
