New to CTFs?

CTFs, short for Capture The Flag, are cybersecurity competitions where participants solve challenges to find "flags". These challenges involve some kind of cybersecurity task, such as hacking into a vulnerable system, decrypting a secret message, and performing analysis on a picture. There are many different kinds of cybersecurity tasks, from easy to hard difficulties.

At Leiden University, we have a CTF Initiative! This is a community of students of different studies teaming up together to do CTF challenges, learn more about cybersecurity and put Leiden University on the Dutch Cybersecurity map. We aim to do this in two different ways:

  • Through the extracurricular course "CTF: Cybersecurity in Practice", where students work together in teams to attempt to hack into the systems of Leiden University, with bi-weekly lectures and meet-ups.
  • Through the Leiden Secret Key Force, a community where students can join biweekly meet-ups to practice CTF challenges together in a more casual setting.

Whether you have done a CTF before, or this is the first time you heard of the term, at Leiden University you can explore your interests for cybersecurity further than just the regular curriculum.

Are you interested in CTFs? Why don't you join our Discord server! We keep you up-to-date with the latest events, news and announcements! See the QR code below:

Leiden Secret Key Force Logo
Leiden Secret Key Force Discord