Direct answer
Treat a potentially exposed API key as sensitive and involve the owner promptly. Identify its permissions and consumers, create and distribute a replacement through an approved secret-management process, revoke the old key and verify both service operation and revocation.
Identify the affected credential
Record the provider, key identifier, owner, permitted actions and affected environments without copying the secret into a ticket. A key in a public repository may have been exposed before discovery; coordinate with the incident team to assess relevant logs and scope.
Reference: OWASP Secrets Management Cheat Sheet.
Plan replacement and cutover
Identify applications, scheduled jobs and vendors that use the key. Create a replacement with the least privilege supported, deliver it through the organization's secret manager and coordinate rollout and rollback with each owner. Do not reuse the exposed value.
- List consumers and dependencies.
- Avoid placing either key in chat or build logs.
- Agree revocation timing with the provider and incident owner.
Revoke and verify
Revoke the old credential using the provider's supported method, then confirm authorized workflows work with the replacement and the old credential is rejected using an approved test. Review failures and incomplete deployments rather than assuming all consumers updated.
Reference: OWASP Secrets Management Cheat Sheet.
Investigate and prevent recurrence
Review exposure location, access logs and retention with the incident owner. Remove the secret from active configuration and apply preventive controls such as approved secret storage and scanning, while recognizing that deleting a repository file does not revoke a credential.
Assessment limits
Provider key behavior, revocation latency and audit coverage vary. Incident response should assess possible misuse and any requirements beyond rotation.
Frequently asked questions
Is deleting the exposed file enough?
No. The credential may have been copied and can remain usable until revoked. Follow the provider's rotation and incident process.
Can I post the key in a ticket for investigation?
Avoid sharing the secret. Use a non-sensitive identifier and approved restricted evidence channels.
Primary sources and further reading
These guides combine published security guidance with practical assessment planning. Adapt checks to the owner's policy, environment, and authorized scope.
This guide was prepared with AI assistance using the linked sources and illustrative examples. Check current vendor guidance and your environment before making changes.