Glossary term
What is KMS / HSM? Meaning for developers
KMS / HSM stands for Key Management Service / Hardware Security Module.
Securely store and use encryption keys. Example: AWS KMS encrypts data keys; keys never leave it.
Learn it properly · System DesignLesson 51: Encryption & Secrets ManagementUnencrypted traffic “inside our network”, an unencrypted backup in a public bucket, a database password pushed to GitHub. Where to encrypt in transit and at rest, who holds the keys, how envelope encryption and KMS work, end-to-end encryption, and how to store, deliver and rotate secrets.