# Security Model

Security Model describes the assumptions, boundaries, and controls that AeThex systems should follow.

<div class="docs-section-heading">
  <h2>Model overview</h2>
  <p>The model defines how identity, permissions, tenants, services, and data boundaries interact.</p>
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The AeThex security model starts with verified identity, then applies context-aware authorization inside organizations, teams, projects, services, and integrations.

## Trust boundaries

- Browser/client boundary.
- API boundary.
- Organization and project tenant boundary.
- Service-to-service boundary.
- Admin and support tooling boundary.
- Public community and open-source boundary.

## Required controls

1. Server-side validation for all protected operations.
2. Explicit tenant context on protected resources.
3. Least-privilege access by default.
4. Audit logs for sensitive changes.
5. Secret rotation and credential lifecycle management.
6. Clear incident and disclosure processes.

<div class="docs-grid">
<a class="docs-card" href="/Security">Security</a>
<a class="docs-card" href="/Multi-Tenancy">Multi-Tenancy</a>
<a class="docs-card" href="/Permissions">Permissions</a>
<a class="docs-card" href="/Database-Design">Database Design</a>
</div>