The Cyber Security Rumble 2020 will take place online from October 30, 2020 - 8pm till November 01, 2020 - 8pm CEST. More info on CTF TIME


Prizes for the first 10 German student teams (max. 6 p.).

1st place SANS EMEA training for all members 2nd place SANS Access to SANS Netwars 1st-10th place Hak5 Gadget per team member

Frequently asked questions

What is Cyber Security Rumble and how can I participate?

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Here is a list of answers to frequently asked questions about the Cyber Security Rumble. You can also send us all your questions to

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Based on the principles of a Capture The Flag (CTF), this computer security competition is a challenge-based game played by teams of maximum 6 students. Over a limited timeframe, the teams must solve challenges covering a wide range of security issues, e.g. cryptography, reverse engineering, network security, web or mobile application security, wireless and forensics analysis. Complexity of challenges range from trivial up to very difficult.

Anyone is allowed to compete in the CTF. Participants must be 18 years of age; if you or a member of your team has not reached that age, please contact us before registering.

Consult the rules of engagement for more information.

Of course! Challenges have been designed for students, not for security specialists, so you don’t need to be a security expert to join. A good general IT knowledge and a good level of motivation is what matters most. The Cyber Security Rumble is composed of challenges designed with all levels of complexity.

Yes you can! But working in a team is always more fun, and you'll probably be able to solve more challenges than by yourself. If you have some trouble finding teammates, head over to the CSR 2020 Qualifiers Facebook event page and find other students who are looking for a team to join.

A good way to get started with the Cyber Security Rumble is to take a look at write-ups from some of the past Cyber Security Challenge Belgium editions:

Once you feel you’re ready to try and solve some challenges on your own, you could take a look at the "awesome-ctf repository": it contains a list of useful tools sorted per category (reversing, cryptography, web, …). It also contains a list of "wargames" available 24/7 for practicing.

For example, the "overthewire wargames" feature a series of challenges, and suggests an order in which to play them based on their difficulty. There’s also an IRC chat channel available, so if you’re stuck you can always go ask for some help there.

This challenge is an initiative of NVISO in cooperation with Hochschule Bonn-Rhein-Sieg, Universität Bonn, SANS Institute EMEA and BSI, and supported by large private corporations and banks (our sponsors), as well as public agencies and organizations that are committed to raising our country’s awareness on cyber-security threats and help train a generation of security-aware professionals and security experts. All sponsors are regularly recruiting talented graduates to re-inforce their security teams, so you may also be meeting your future employer at our event!

We have a wide range of challenges ranging from general security knowledge over mobile security to reverse engineering and cryptography. Some of them will be easy and others will be a challenge even for the more skilled participants. To get a feel for what you can expect you can always head over to the write-ups of the previous editions on GitHub ( 2015 and 2016). Don't expect a completly identical challenges for this year though!

Partnering with Cyber Security Rumble Interested in getting in contact with the future top cyber security experts in Germany? Watch the video of Cyber Security Rumble 2019


Let's have a chat! You are a student who wants to participate, a company interested in sponsoring or an academic institution who wants to join the initiative?

Don't Hesitate To Contact Us

Cyber Security Rumble e.V
Amtsgericht Frankfurt am Main - VR 16377

Am Hopfengarten 22 - 60489 Frankfurt am Main


Gemeinschaftlich vertretungsbefugt: Pierre-Alain Mouy, Oliver Nettinger