Samuel Brack is a cybersecurity expert who researches data protection for digital currencies and distributed systems. As CTOP of the “Goodcoin” project, he has developed a completely anonymous bonus point system. Samuel is a published author in a number of professional publications around IT, security and cryptography. He holds a Master’s degree of Science in Computer Science from Humboldt University in Berlin and is an active member of the Berlin Hacker Community and the IEEE Computer Society in Los Alamitos, California.