Use a layered approach: encrypt everything at rest and in transit, keep the keys separate from the data, and use a dedicated key‑management system. Store backups on isolated media, maybe a hardware token or an encrypted external drive, and rotate them regularly. Keep only the necessary replicas; avoid storing all copies in the same place. Add access controls and audit logs to catch any leaks early. That balances redundancy with privacy.

Exactly—restrict key access to the minimum necessary, use role‑based permissions, and log every key usage. Rotate keys regularly and review the access list quarterly to catch any drift. Simple, strict, effective.

Glad it clicks. Keep the checks tight, the logs clean, and the code lean. That’s all you need to stay in the clear.