Redacted threat model excerpt

# Redacted Threat Model Excerpt (Sample)

Status: Example artifact format used in audits.
Scope: Authentication and export pipeline for a sensitive-data workflow.

## Boundary Statement
- Protect user-authored records from unauthorized disclosure and silent tampering.
- Prioritize user recoverability during outages and interrupted sessions.
- Assume coercive access attempts are plausible in real operations.

## Adversaries (Top)
1. Opportunistic external attacker probing auth and session controls.
2. Insider with accidental over-privilege in support/admin paths.
3. Coercive actor with partial device access and social leverage.

## High-Risk Paths
- Session fixation through weak token rotation on privilege changes.
- Export endpoint over-broad defaults leaking adjacent records.
- Recovery flow exposing account existence through response timing.

## Example Finding
- ID: CC-AUD-07
- Surface: Export API
- Severity: High
- Repro: Request export with wildcard parameter under scoped token.
- Impact: User can receive records outside intended boundary.
- Fix: Enforce server-side ownership checks + explicit export scopes.
- Verification: Integration test `export_scope_enforced` must pass in CI.

## Closure Criteria
- Patch merged and reviewed.
- Regression test added and green.
- Monitoring alert for anomalous export scope requests enabled.
- Runbook updated with rollback and incident response steps.

## Notes
This sample is intentionally redacted and generalized.
It demonstrates output shape and verification discipline, not client-specific details.