Terminal43CTF / Learn. Practice. Solve.
CTF challenges and cybersecurity practice
Build cybersecurity skills one step at a time. Learn the foundations in a course, investigate a challenge, then put your knowledge to the test.
For curious beginners, students and experienced learners looking for hands-on practice.
Public challenge preview
Basics 1
A simple login page guards a secret. Sometimes the answer is hiding in plain sight.
Your next step
Start with the foundations. Build towards harder challenges.
Choose a starting point that matches your experience. You can move between courses and practice whenever you need.
- 01
Learn the foundations
Follow a beginner course and work through its lessons at your own pace.
Find a beginner course → - 02
Put it into practice
Try an Easy challenge, read the task and investigate before submitting your flag.
Explore Easy challenges → - 03
Go further
Explore intermediate courses or follow a CTF learning path to structure your next steps.
Explore CTF paths →
Challenges you can explore
A selection from the public catalog. Open a challenge to see its task and difficulty.
Web · Easy
Basics 1
A simple login page guards a secret. Sometimes the answer is hiding in plain sight.
View challenge →OSINT · Easy
Curse Hunter (1)
You have suddenly found yourself in the fascinating world of Japan. All you can remember is a single word: 'Curse.' Aft…
View challenge →Misc · Easy
Wires
zTXt
View challenge →Find your area of interest
Explore the catalog by topic, then narrow it down by difficulty.
Ready for the next challenge?
Discover labs, competitions and community features when you are ready to expand your practice.
Take the full tour →