Sergiu began his security career in 1999 as IT security engineer with Defense Intelligence, focusing on network security and cryptology, gathering multi-disciplinary experience as Chief Information Security Officer with telco, banking and retail players. As Central Security Director of Telekom Romania, in 2010 Sergiu unified a wide range of security teams into one, directly reporting to the CEO. As a member of Business Continuity Management and Crisis Management groups of excellence in Deutsche Telekom, Sergiu benefited from a know-how transfer from top global cyber resilience experts. Currently he’s developing the Security Center of Excellence in Romania and provides security advice to customers across several sectors. Sergiu has a master’s degree and a merit diploma in IT Security from the Military Technical Academy of Bucharest and started his PhD in 2017, with the aim of improving application security review through machine learning algorithms.