Security Architecture

Security Architecture: The structured design of security controlsSecurity ControlA technical, organizational, or physical measure used to reduce a security risk., trust boundaries, data flows, and operational responsibilitiesResponsibilityAn explicitly assigned obligation to make, perform, or verify a security decision or task.. Secure use depends on clear boundaries, correct configuration, monitoringMonitoringThe continuous observation of systems, identities, networks, and controls for relevant changes., and a controlled lifecycle.

How it works and where it fits

Security Architecture is a building block of security architecture that must be understood in its system and business context. Its intended objective, affected trust boundaries, prerequisites, and interaction with other controls are decisive. An isolated definition is therefore not sufficient for implementation or assessment.

Practical security relevance

Sound implementation assigns ownership, configuration, data sources, and verifiable success criteria. Assumptions and exceptions should be documented and changes controlled. Periodic testing shows whether the concept reduces risk in the actual environment or has merely been addressed as a formal requirement.

Related concepts

• Defense in DepthDefense in DepthCombines multiple independent security controls to create layered protection.: Combines multiple independent security controls to create layered protection.
• Zero TrustZero TrustSecurity model that grants no implicit trust and verifies every request based on context.: Security model that grants no implicit trust and verifies every request based on context.
• Security ControlSecurity ControlA technical, organizational, or physical measure used to reduce a security risk.: A technical, organizational, or physical measure used to reduce a security risk.
• Threat ModelingThreat ModelingAnalyzes potential attackers, attack vectors, and protective measures during the design phase.: Analyzes potential attackers, attack vectors, and protective measures during the design phase.