Enterprise information security architecture
An enterprise architecture (EA) is a blueprint that defines the structure and operation of the organization. It describes how different elements such as processes, systems, data, employees, and other infrastructure are integrated to achieve the current and future objectives of the organization.
The security architecture is a subset of the overall EA. The objective of the security architecture is to improve the security posture of the organization. The security architecture clearly defines what processes a business performs and how those processes are executed and secured.
The first step for a security manager implementing the security strategy is to understand and evaluate the IT architecture and portfolio. Once they have a fair idea of the IT architecture, they can determine the security strategy.
Challenges in designing security architectures
While designing the security architecture, it is important for a security manager...