medium
Tamper-Proof Audit Logging
Question
Your enterprise client operates in a regulated industry (financial services). They need an audit log of all user actions that is:
- Tamper-proof (no deletion or modification after write)
- Queryable (search by user, time range, action type)
- Retaining 7 years of data
- Compliant with SOC 2 and GDPR
**Design this system.**