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Security Fundamentals & Crypto · Advanced

Dynamic Secrets

Credentials generated on demand for each client with a short lease, then automatically revoked.

Definition

Dynamic secrets eliminate long-lived shared credentials: each application instance receives unique credentials that expire. If leaked, they are useful only briefly and can be traced to the requester. HashiCorp Vault's database and cloud secrets engines are common implementations.

Example

vault read database/creds/readonly returns a new database username and password valid for one hour.

Exam tip

Dynamic secrets reduce blast radius and support just-in-time access.

Related terms