AWS Secrets Manager and Parameter Store

Applications need secrets — database passwords, API keys, OAuth tokens, encryption keys. Hardcoding these values in source code or configuration files is a serious security risk. AWS provides two services to manage secrets securely: AWS Secrets Manager and AWS Systems Manager Parameter Store.

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The Problem with Hardcoded Secrets

Hardcoding secrets leads to multiple issues:

• Source code exposure — secrets committed to version control are accessible to anyone with repository access, and they persist in git history even after deletion.
• Difficult rotation — changing a hardcoded secret requires redeploying every application that uses it.
• No audit trail — you cannot track who accessed the secret or when.
• Environment coupling — the same secret value is often used across development, staging, and production, creating security risks.

Both Secrets Manager and Parameter Store solve these problems by externalising secrets from your application code.

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AWS Secrets Manager

Secrets Manager is a purpose-built service for storing, retrieving, and automatically rotating secrets.

Key Features