Vladyslav C. Usenko is a senior researcher at the Department of Optics of Palacky University Olomouc, where he joined in 2009 after receiving his Ph.D. degree from the Bogolyubov Institute for Theoretical Physics and being a Landau Network-Centro Volta post-doctoral fellow at the University of Milan. His research interests include quantum optics and quantum information theory with a particular focus on quantum communication and quantum cryptography, for which he develops new protocols, studies practical security, and explores the role of quantum nonclassicality.