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Security Architecture
  • All of the technical countermeasures a company has in place—including firewalls, hardened hosts, IDSs, and other tools—and how these countermeasures are organized into a complete system of protection.
  • A detailed description of all aspects of the system that relate to security. along with a set of principles to guide the design. A security architecture describes how the system is put together to satisfy the security requirements. (NOTE: a security architecture is basically an architectural overlay that addresses security. It is increasingly important in distributed systems, since there are many ways in which security functions can be distributed and care is needed to ensure that they work together. ) (Source: NCSC-TG- 029).