Secret lifecycle
Reduce blast radius at every stage
A secret is managed only when creation, delivery, use, rotation, audit and revocation are owned as one lifecycle.
Inventory
Know every credential and the system or action it authorizes.
- Record
- Owner, consumer, scope, environment and expiry
- Risk
- Unknown keys remain active after experiments
- Proof
- Credential register without secret values
Storage and delivery
Keep secrets outside source, prompts, images and ordinary logs.
- Record
- Approved vault and runtime injection path
- Risk
- A copied .env file becomes the deployment process
- Proof
- Clean checkout deploys through controlled identity
Scope
Give each workload only the operations and environment it needs.
- Record
- Resource, action, tenant and network constraints
- Risk
- One general key controls production and development
- Proof
- Denied out-of-scope operation
Rotation
Change credentials without emergency downtime.
- Record
- Rotation owner, overlap and rollback procedure
- Risk
- A long-lived key cannot be replaced safely
- Proof
- Rehearsed dual-key or staged rotation
Audit and revoke
Make unusual access attributable and quickly containable.
- Record
- Use events, alerts, retention and revocation trigger
- Risk
- Provider key use cannot be tied to a workload
- Proof
- Alert and confirmed revocation drill
Operating principle
Keep secret material out of the collaboration surface
Prompts, screenshots and support threads are optimized for sharing, not for containing production credentials. Redact values before asking an AI tool or a human collaborator for help.
Use names and metadata to discuss credentials: which workload needs which permission, where the value is injected and how it rotates. The value itself should travel only through the approved secret system.
- Never commit secrets
- Do not paste production values into prompts
- Use separate environment credentials
- Rotate after suspected exposure
Applied example
Failure example: the helpful debug log
A generated API wrapper logs the full request options when a provider rejects authentication. The production token appears in a searchable logging service.
- The vault stored the token correctly
- The application exposed it during use
- Broad log access expanded the blast radius
- Rotation and log-retention procedures were both required
Plain answers
Questions to resolve before shipping
Is a local .env file always unsafe?+
It can be appropriate for local development if excluded from version control and handled carefully. It is not a production secret-management lifecycle by itself.
Can I encrypt a secret in the repository?+
Encryption can be part of an approved system, but key access, decryption, rotation and audit still need explicit design.
How often should secrets rotate?+
Use short-lived credentials where possible and set rotation from consequence, provider capability and incident needs rather than one universal interval.