Marinko Žagar is a Senior Lecturer at the Polytechnic of Zagreb, with many years of experience in information security, managing large and complex IT teams and projects, and teaching at higher education institutions. He graduated the Military Academy and a postgraduate master’s degree on the Faculty of Organization and Informatics in Varaždin. He worked as the Head of IT department in the Školska knjiga d.d., Director of the Application Development and Integration Division at Combis d.o.o. and CEO at INsig2 d.o.o. He has been at the Zagreb University of Applied science since 2015. In addition to teaching activities in the field of information security and information systems design, he was responsible for accreditation process and launch of the Master study program Information Security and Digital Forensics in 2018. During his professional career, he has gained numerous practical experiences in the design and implementation of information systems and implementation of information security management systems for various purposes. He has published several professional and scientific papers in the field of information security and information systems design and development.