Based in Saarbrücken
Johannes Krupp is a researcher at the CISPA Helmholtz Center for Information Security in Saarbrücken, Germany. He joined CISPA as a Ph.D. candidate after receiving a bachelor degree in computer science from Saarland University in 2014. His research on DDoS attacks and attack attribution has been recognized by the academic community with publications at RAID and CCS.
Amplification DDoS attacks are one of the most prevalent forms of denial-of-service attacks. The SISSDEN project (sissden.eu) operates a network of honeypots designed to detect these attacks, observing 10,000 per day.