Cybersecurity Architecture - bp Sphere

Authentication, authorization, encryption, secrets, audit logging, and agent tool boundaries.
Security ArchitectureZero-trust patternSOC visible

Cybersecurity Architecture Control Tower

This surface answers how the runtime protects sensitive data and secures agent access. The workshop environment uses representative controls; production binding connects the same contracts to enterprise identity, secrets, network, SIEM, and cyber-governance services.

Authentication
OIDC / SSO pattern
Authorization
RBAC + policy gates
Encryption
TLS + encrypted stores
Secrets
Vaulted short-lived tokens

Security architecture layers

Agentic execution is only credible if every human, agent, tool call, data read, and action payload is identity-bound, policy-gated, logged, and recoverable.

AuthenticationUsers authenticate through enterprise SSO / OIDC; service workloads authenticate through managed workload identity.
AuthorizationRBAC resolves user permissions, agent permissions, data scope, action scope, and approval scope before execution.
Security GatewayAll agent tool calls pass through a gateway that checks identity, entitlement, policy, data classification, and request intent.
EncryptionTransport is TLS-bound; sensitive payloads, evidence hashes, secrets, and replay artifacts use encrypted persistence.
Secrets ManagementAdapters use vaulted credentials, short-lived tokens, rotation policy, and no embedded passwords in agent prompts or UI.
Audit LoggingEvery recommendation, evidence access, policy decision, approval, override, and write-back attempt emits an immutable audit event.
SOC / SIEM TelemetryAuthentication failures, authorization denials, prompt-injection attempts, tool-injection attempts, and sensitive-data access are forwarded as security events.
Controlled Write BoundaryAgents may recommend or draft actions; high-impact write-back requires policy approval and named human accountability.

Security proof checklist

These are the checks a security reviewer can inspect live before accepting that agents are governed rather than free-running.

Who acted?User identity, agent identity, workload identity, role, and delegated authority are visible.
What did they access?Data objects, source adapter, classification, evidence record, and retrieval timestamp are tracked.
Was it allowed?Authorization, policy result, segregation-of-duties check, and approval requirement are recorded.
What was protected?PII / confidential tags, masking status, encrypted storage, and no-secret-in-prompt boundary.
What was denied?Access failures, policy denials, unsafe tool calls, and attempted prompt/tool injection events are logged.
Can it be audited?Replay package includes security decision, evidence access, policy result, and human override trail.
Can it be stopped?Kill switch, autonomy downgrade, connector pause, and write-back hold are exposed in operations surfaces.
Can it be integrated?Production target binds to enterprise IAM, secrets, SIEM, DLP, network segmentation, and cyber runbooks.

Agent security runtime flow

StepRuntime security control
1. Human opens decisionAuthentication, role resolution, route/RBAC authorization.
2. Agent activatesAgent identity, version, owner, autonomy level, and permission scope loaded.
3. Tool call requestedSecurity gateway checks source adapter, purpose, data classification, and policy boundary.
4. Evidence retrievedEvidence access event, document classification, lineage, timestamp, and hash recorded.
5. Action draftedWrite-back boundary validates authority matrix, SoD, approval, and replay completeness.
6. Human approvesNamed accountability, approval reason, override reason, and audit event sealed.

Security failure scenarios

ScenarioExpected platform behavior
Unauthorized data requestBlock, log authorization failure, show denied source and required permission.
Prompt/tool injection attemptQuarantine request, block tool execution, emit cyber event, require operator review.
Secrets service unavailableStop adapter action, preserve decision queue, mark dependency degraded, prevent write-back.
Sensitive evidence accessedApply masking/classification controls and record user, agent, object, and purpose.