Authentication
Identity establishes who is present. It does not by itself establish ownership, permission or authority for a consequential operation.
Security
Security begins with explicit system and authority boundaries.
Neptlium separates authentication, authorization, privileged operations, canonical financial state and provider evidence because each carries a different security responsibility.
This page describes supported architectural principles. It does not claim certifications, insurance, regulatory approval, penetration-test status, specific cryptographic controls or perfect security unless those facts are separately documented.
Control boundaries
A consequential action should cross the boundaries that its risk requires.
- 01Identity
- 02Authorization
- 03Ownership
- 04Policy
- 05Auditability
- 06Reconciliation
Authorization
Roles, ownership, policy and resource state remain server-enforced considerations before sensitive work may proceed.
Client boundary
Public browser presentation is not the financial control plane. Provider secrets, service credentials and privileged commands belong outside client authority.
Service boundary
Canonical financial and account authority belongs in the responsible server-side service rather than being reconstructed from marketing or browser state.
Evidence
Consequential transitions should be supported by the evidence appropriate to their lifecycle state rather than inferred from presentation or intent.
Fail closed
Missing credentials, unavailable dependencies or unverified capability must not be represented as simulated success.
Replay resistance
Consequential operations are designed to resist accidental duplication and unsafe replay where those workflows are implemented.
Data boundaries
Ownership, row-level controls and service boundaries constrain access according to the responsible subsystem where those controls are implemented.