Krassimir Tzvetanov is a graduate student at Purdue University focusing on Threat Intelligence, Operational Security and Influence Operations, in the cyber domain. In the recent past, Krassimir was a security engineer at a small CDN, where he focused on incident response, investigations, and threat research. Previously he worked for companies like Cisco and A10 focusing on threat research and information exchange, DDoS mitigation, product security. Before that, Krassimir held several operational (SRE) and security positions at companies like Google, Yahoo!, and Cisco. Krassimir is very active in the security research and investigation community. Krassimir holds a Bachelor in Electrical Engineering, Master in Digital Forensics and Investigations, and a Master in Information Technology with a focus on Homeland Security.