LowFile-scopeRuby Plug & play

Structured audit events

Emit JSON audit events via ActiveSupport::Notifications with user_id, action, resource_id, and request_id.

Why this matters

Structured events improve SOC 2 auditability and incident response.

Side-by-side examples engineers can pattern-match during review.

Avoid

Rails.logger.info('user updated')

Prefer

ActiveSupport::Notifications.instrument('audit', {user_id:u.id, action:'user.update', resource_id:u.id, request_id:req.request_id})

Good

ActiveSupport::Notifications.instrument('audit', {action:'login'})

Bad

Rails.logger.info('login')

From the same buckets as this rule.

Critical
Encrypt sensitive data at rest with KMS and rotate keys
Use envelope encryption (AES-256-GCM) with cloud KMS-managed CMKs for databases, object storage, and backups. Rotate CMKs at least annually and rotate DEKs per object/file.
compliance-soc2-essentialssecrets-credentials+1
Critical
Enforce TLS 1.2+ and HSTS on all external endpoints
Public services must require TLSv1.2 or higher and set HSTS (max-age ≥ 15552000, includeSubDomains). Reject plaintext HTTP and weak ciphers; cookies must be Secure and HttpOnly with SameSite set.
compliance-soc2-essentialssecurity-hardening+1
Critical
Use a secrets manager and 90-day rotation policy
All credentials (API keys, DB passwords, tokens) must be stored in a secrets manager with automatic rotation ≤ 90 days; forbid hardcoded or .env-committed secrets via CI checks.
compliance-soc2-essentialssecrets-credentials+1