# 09 — Security & Compliance

- Roles: `super_admin`, `tenant_admin`, `member`; guest upload via signed tokens.
- Policies: all tenant-owned models gated; Super Admin bypass via explicit ability.
- Audit: record impersonation and destructive actions with actor, target, reason.
- Logging: structured, no PII; add request/trace IDs; redact secrets.
- GDPR: retention settings per tenant; deletion workflows; legal pages managed via CMS-like resource.
- Rate limits: per-tenant, per-user, per-device; protect upload and admin mutations.