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Agent Trust Cloud
BlueprintPage 12
12ARCHITECTURE

Security Architecture & Zero Trust

Use NIST Zero Trust Architecture as a design reference; adapt it to agent principals, delegated authority and tool-level decisions.

Priority
P0
Phase
Foundation
Primary owner
CISO / Security Eng
Status
Blueprint

Objective

Agent Trust Cloud should implement zero-trust principles internally and expose them as customer controls. NIST SP 800-207 emphasizes resource-focused protection and explicit authentication and authorization rather than implicit trust based on network location. That maps naturally to agents because agents are mobile software principals that can operate across clouds, SaaS and tool boundaries.

What to build

  • Mutual authentication between gateways, connectors and control-plane services.
  • Short-lived credentials and workload identities instead of long-lived static keys.
  • Fine-grained service authorization enforced at every sensitive internal API.
  • Strict separation of tenant data, administrative operations and production secrets.
  • Continuous vulnerability management, dependency scanning, secrets scanning and threat modeling.

Implementation decisions

  • Create internal security zones: public edge, control plane, telemetry, evidence, secrets and administration.
  • Adopt deny-by-default service permissions; authorize service-to-service calls by identity.
  • Encrypt data in transit and at rest, with envelope encryption for high-sensitivity stores.
  • Document the shared-responsibility model for SaaS vs. customer-managed gateway deployments.

Definition of done

  • No internal service relies solely on network location for authorization.
  • Every admin action is privileged, auditable and protected with strong authentication.
  • Security architecture review is required before adding a new data store or execution path.

Success metrics

  • Privileged access events
  • Mean time to revoke a service identity
  • Critical vulnerability SLA
  • Security control coverage

STANDARDS ANCHOR

Use NIST Zero Trust Architecture as a design reference; adapt it to agent principals, delegated authority and tool-level decisions.