In short
Storing credentials, API keys, and other sensitive values in a dedicated, access-controlled service rather than hardcoding them in configuration files or environment variables checked into version control.
How to learn this
- 1Store a sample secret in a managed secrets service and retrieve it programmatically.
- 2Learn why committing a secret to Git (even briefly) is a serious security incident, not a minor mistake.
- 3Understand secret rotation and why regularly changing credentials limits the damage of a leak.
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