BREAK
THINGS.
and then learn to defend them.
is what cybercrime costs the world every year, all while 4.8 million security jobs sit unfilled.
MaaSec is Maastricht University’s cybersecurity organisation and ACM chapter, helping students build practical security skills through workshops, competitions, and real projects.
Our mission is to bring more people into cybersecurity by making practical, hands-on learning accessible to everyone. Every week, our members tackle deliberately vulnerable systems, share what they’ve learned, and build the skills needed for competitions, bug bounty programmes, and careers in cybersecurity.
You don’t need prior experience or certifications. Our senior members will turn your curiosity into valuable security skills.
Read our story →What MaaSec offers
Our team in action
Labs, competitions, and the people behind MaaSec.
CTFs look impossible from the outside.
We’re bringing you in.
Start at your first lab- 01Show up to a labNo prep needed, bring a laptop.
- 02Learn the toolsA mentor will guide you through the process.
- 03Solve your first flagIt only gets better from here.
What the experts are saying
Competing in CTFs is the best way to get yourself FAANG ready.
Frequently asked questions
MaaSec is Maastricht University's student cybersecurity organisation and ACM chapter — the Netherlands' 3rd-ranked university CTF team, running weekly labs, competitions, and real consultancy work.
Yes — MaaSec. We're Maastricht University's cybersecurity organisation and ACM chapter, open to any student regardless of study background or prior experience.
Apply through MaaSec's Join page — no certifications or prior coursework needed. You'll have a short chat with the CTF team lead, then start training from wherever your current skill level is.
No. MaaSec welcomes complete beginners — no certifications or prior coursework needed. Mentorship from senior members takes you from your first lab to your first real competition.
CTF, Marketing, or Consultancy — each with mentorship from senior members. Pick one on the Join page.
ACM (the Association for Computing Machinery) is the world's largest computing society. As Maastricht University's official ACM chapter, MaaSec's members get access to ACM's global network, resources, and events alongside everything we run locally.
We're the Netherlands' 3rd-ranked CTF team, competing internationally as MaaSec. Our team trains members from complete beginner to competition-ready, with mentorship from senior players.
Real, provable skill — CTF placements, bug bounty reports, and consultancy work you can put on your CV.
Join our team.
Learn from professionals.
Weekly meetups, a well-established cybersecurity presence, and an ever-growing community.
acm@maasec.com