
D04
Application Security Architecture

About The Standard Domain
The Application Security Architecture domain defines how applications, APIs, components, and services are designed and built to withstand threats and protect data, functionality, and user trust.
It provides unified expectations for secure design, interface protection, runtime controls, and resilience to support confidentiality, integrity, availability, and safe operation of software systems.
Secure Application Design
API & Interface Protection
Secure Components
Runtime & Session Control
Resilience & Assurance
Why Adoption is Necessary
Architectural Clarity
Provides a shared blueprint for secure application structure, components, interfaces, and interactions.
Consistent Engineering Expectations
Aligns teams on secure design principles for APIs, services, software components, data flows, and application boundaries.
Measurable Verification
Defines testable outcomes for security controls across code, APIs, runtime behavior, and application protection mechanisms.
Stronger Evidence
Supports traceability, audit readiness, and defensible evidence with clear design rationale, control coverage, and implementation proof.
How The Standard Works
Requirements
Define the security outcomes and capabilities applications must achieve to be secure by design.
Technical Specifications
Provide the architectural patterns, interfaces, controls, and design expectations needed to meet the requirements.
Verification and Validation
Define how to test, verify, and validate application security controls, behaviors, and protections.
Implementation Guidance
Offer practical guidance, patterns, and best practices to implement secure applications effectively.
Associate Standards Preview
Associate Standards Coming in Q3 2026
Detailed, implementation-level standards that support D01 will be published in Q3 2026 to help teams operationalize secure network architectures.

