How Much Should We Pay for Security? (Invited Paper). - Sokratis K. Katsikas; Athanasios N. Yannacopoulos; Stefanos Gritzalis; Costas Lambrinoudakis; Petros Hatzopoulos (IICIS, 2004)

A formal model for pricing information systems insurance contracts. - Costas Lambrinoudakis; Stefanos Gritzalis; Petros Hatzopoulos; Athanasios N. Yannacopoulos; Sokratis K. Katsikas (Comput. Stand. Interfaces, 2005)

A probabilistic model for optimal insurance contracts against security risks and privacy violation in IT outsourcing environments. - Stefanos Gritzalis; Athanasios N. Yannacopoulos; Costas Lambrinoudakis; Petros Hatzopoulos; Sokratis K. Katsikas (Int. J. Inf. Sec., 2007)