Security

Isolation, Access Tiers,
and Audit Trail

Security is the architecture, not a feature. Every layer is designed with the assumption that data must be protected from unauthorised access — even from the AI system itself.

Local Guardian Agent

An independent AI agent at the boundary of every data flow. It classifies sensitivity in real-time, decides what context may leave the local environment, and has veto authority over outbound transmission — regardless of what other agents request.

Real-time data classification at point of access
Veto authority over outbound data transmission
Policy-based enforcement of data boundaries
Independent from all other system agents

Vault-Encrypted Document Storage

All documents are encrypted at rest using AES-256 within a secure vault. Decryption occurs only server-side after authorisation verification. Documents are classified upon ingestion and access is governed by clearance policies.

AES-256 encryption at rest for all documents
Server-side decryption with authorisation checks
Automatic classification upon ingestion
Role-based access tied to clearance levels

Complete Audit Trail

Every interaction with any AI model — local or cloud — is logged with full provenance. What was sent, which model processed it, what was returned, and who authorised it. Tamper-resistant storage creates a reconstructible record of all AI operations.

Full request/response logging for all model calls
Model identification and versioning per entry
Authorisation chain recorded per interaction
Tamper-resistant storage of all records

Access Tiers

AEXOS enforces role-based access across a clear hierarchy. Executives see the full decision pipeline. Delegates operate within assigned boundaries. Delivery staff access only what the engagement requires. No lateral movement between tiers.

Executive, Delegate, and Staff access tiers
Granular permission boundaries per role
Provisioned on engagement, not self-serve
Least-privilege by default

Security Principles

Least Privilege

Every agent and model receives only the minimum data required for its specific task. No system component has blanket access to all organisational data.

Defence in Depth

Multiple independent security layers — classification, encryption, access control, audit logging, and the Local Guardian — ensure no single point of failure can compromise data.

Reconstructible Record

Any decision pathway can be reconstructed at any time — which models were used, what data was accessed, what was recommended, and who authorised the outcome.

Restricted-Data Mode for ITAR and PHI

Organisations handling export-controlled technical data or protected health information can enable restricted-data mode. Classified records are excluded from AI processing and outbound integrations, access is limited to cleared roles, and every access is written to the tamper-evident audit log.

Who builds AEXOS

AEXOS is built by AsymiLink Meta, an AI integration and custom software firm that also operates and maintains the platform. If your security team wants to go further than this page before a licence is signed, send its questions with your access request.

Security by architecture

Organisations handling ITAR, PHI, CUI, and classified data require AI systems that enforce security at the infrastructure level.

AEXOS Security and Audit Trail | AEXOS