To Play or Not to Play: Insights and Lessons Learned from 20 Years of CTFs with ENOFLAG

Security contests in the form of CTF Capture The Flag exercises are nowadays a common way to learn cyber security. 20 years ago at DIMVA 2006 the on-site CTF CIPHER II was one of the conference highlights and led to the foundation of the team ENOFLAG. In this poster, we reflect on the changes in...