Denis Legezo Denis Legezo works as a senior security researcher within Kaspersky's Global Research and Analysis Team (GReAT) and specializes in targeted attacks research. He earned his degree in cybernetics and applied mathematics from Moscow State University in 2002. His diploma topic was directly related to information security. Then he started his career as a programmer in different public and commercial companies. Before joining Kaspersky at the beginning of 2014, he worked as a technical expert for a Russian IT company. He has presented his targeted malware research at RSA Conference, SAS, Virus Bulletin and MBLT Dev.