Risk assessment model for information security based on danger theory

Information security risk assessments,such as subjective and static assessments are improved by an information security risk assessment system based on Biological Immunology Danger Theory.The system uses the danger signal trigger mechanism to deal with mutated information systems and networks.This model is used to calculate the possibility of a security incident.The information system risk is then calculated according to the Chinese standard.Simulations with asset scale,attack priorities and changing attacks show the risk,the analysis immunity and the number of attacked assets.The information system risk is reduced and the system is protected from various attacks,which is similar to the Biological Immune System.The model effectively assesses information system security risks using real-time analyses which greatly reduce the dependence on artificial experience.