Examining enterprise architecture security reference architecture models and making suggestions for Turkey

Information has become even more important with the widespread use of the Internet and IT. The importance of information security in the virtual environment has increased with malicious software and cyber attacks. Information security has been tried to be evaluated within the institutional structure with a holistic approach. Security is one of the issues that are studied meticulously in environments where many personal data are stored and presented, especially for critical public services. The concept of transparent service has been developed through the Internet, and the concept of time and space has disappeared from the point of view of users. Studies on the importance of data security have been developed with the spread of internet use all over the world with Covid 19. Transformation has become inevitable as developments in the field of IT. While there is the reflection of the corporate architecture on their IT, its effect on business continuity and corporate gains is taken into consideration. When the number of services offered in the virtual environment increases, it is necessary to increase the data security measures to the same extent. It is necessary to develop a high-level strategy for security against malicious software within the institutional hierarchy. Enterprise Architecture (EA) includes security on the basis of its functionality and structural functions. Information security policies should be kept up-to-date in order to show power against the developed world states.