JAROSLAV MUSIL
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Sixteen-year-old student at an economic lyceum with a deep interest in cybersecurity and ethical hacking. Member of the Czech Cyber Team, Haxagon Skirmish Finalist.
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Red-Team Projects
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Critical Vulnerabilities Found
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Secure Platforms
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Mission Success
Penetration &
Red Team
Assessments
with Mitel a.s.
As a partner for Mitel a.s., I execute red-team operations, deep penetration tests, and security audits of mobile applications.
Red-Team Operations
Operations simulating real attackers to test the resilience of infrastructure and personnel.
Penetration Testing
Complex penetration testing of systems and networks.
Mobile Security
Securing mobile applications before release.
01. About Me
I have been dedicated to the world of IT for over six years, specializing in offensive security. My world revolves around uncovering vulnerabilities before they are exploited by malicious actors.
I actively participate in Capture‑The‑Flag (CTF) competitions, testing my limits in cryptography, reverse engineering, and web exploitation.
When I'm not at the keyboard, you'll find me at the gym. I combine my studies with MMA (Mixed Martial Arts) training, which teaches me discipline, strategic thinking, and endurance — qualities essential in cybersecurity.
Offensive Security
Penetration Testing, Red Teaming
Web Development
Modern React Stacks, Secure Coding
Discipline
MMA Training, Strategic Mindset
My Journey
Entering the National Arena
Discovering the Czech Cyber Security Competition and successfully advancing through qualifications.
Haxagon Skirmish Champion
Winner of the Haxagon Skirmish CZ regional round (awarded Meta Quest 3) and 5th place in the national final in Prague.
National Competition Finalist
Achieved 11th place in individuals and 16th place in teams among the best young talents at the finals in Brno.
National Cyber Competition
Participated in the new season of the National Czech Cyber Competition.
Elite Training – ECSC
Selected for the "Cyber Competition Summer School" — the official preparation boot camp for the European Cyber Security Challenge.
Selected Work
Deploying secure infrastructure and modern experiences.
UnderTheHood
Zero-Knowledge encrypted note-sharing. Features client-side AES‑256‑GCM encryption and self-destruct mechanisms. Server sees nothing.
03. Certifications & Membership
Czech Cyber Team
Active Member
Active member representing the Czech Republic in national and international cyber competitions.
TryHackMe Jr. Pentester
Certification
Certificate obtained by completing a comprehensive offensive security training program on the TryHackMe platform.
Haxagon Skirmish Finalist
1st Place Regional / 5th National
Awarded 1st place in the regional round and 5th place in the national final.
National Cyber Competition
Finalist
Participation in the National Cyber Security Competition finals (11th individual / 16th team).
Let's Build
Something Secure.
Open to new opportunities or collaboration. Feel free to contact me.
© 2025 Jaroslav Musil (MrAxo). Built with passion & code.