2.6 Given a scenario, integrate Zero Trust concepts into system architecture design.
Zero Trust removes implicit trust from the network. Every request is authenticated, authorised against context and continuously re-evaluated.
Continuous evaluation
- Continuous authorization
- Access is re-evaluated during the session, not just at login.
- Context-based reauthentication
- Requiring re-authentication when context changes (new location, device risk, sensitive action).
Network architecture
- Segmentation
- Dividing networks into zones.
- Microsegmentation
- Fine-grained policies per workload or application.
- VPN
- Traditional remote access; in Zero Trust often replaced by identity-aware access proxies.
- Always-on VPN
- Device always connects through the VPN so policy and monitoring apply everywhere.
Integration and assets
- API integration and validation
- Every API call authenticated, authorised and validated.
- Asset identification, management, and attestation
- Knowing every device and verifying its health before trusting it.
Security boundaries
- Data perimeters
- Guardrails ensuring only trusted identities access trusted resources from expected networks.
- Secure zone
- Protected enclaves for the most sensitive assets.
- System components
- Each component treated as its own boundary.
Deperimeterization
- Deperimeterization
- Moving away from a single network perimeter to identity- and data-centric controls.
- Secure access service edge (SASE)
- Cloud-delivered combination of networking and security services close to users.
- Software-defined wide area network (SD-WAN)
- Policy-driven WAN connectivity across multiple links.
- Software-defined networking
- Programmable networks enabling dynamic, policy-based segmentation.
Defining subject-object relationships
- Defining subject-object relationships
- Explicitly mapping which subjects (users, services, devices) may access which objects (data, apps) under which conditions.
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Original CoreQ Academy material, mapped to objective 2.6 of the publicly available CompTIA SecurityX CAS-005 exam objectives (Exam objectives V5, document version 7.0). Not affiliated with or endorsed by CompTIA. Contains no exam questions.