Bogdan Księżopolski is an assistant professor at the Polish-Japanese Academy of Information Technology in Warsaw and Maria Sklodowska-Curie University in Lublin. He received his M.Sc. in computer physics from Maria Curie-Sklodowska University in Lublin and his Ph.D. in computer science from Polish-Japanese Academy of Information Technology in Warsaw, Poland. His research interests include information security, cryptology, security metrics, security engineering, and cryptographic protocols. He has published over 40 papers on computers security. He is the founder and creator of the Quality of Protection Modeling Language (QoP-ML) which enables multilevel modeling of secure systems.