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This refers to a security credential used to authenticate requests to Amazon Web Services (AWS). It essentially acts as a key, granting authorized access to AWS resources and services. An example includes its use when programmatically interacting with AWS services through the AWS Command Line Interface (CLI) or SDKs.
Its importance lies in securing AWS environments by controlling who or what can access cloud resources. Proper management of these credentials mitigates the risk of unauthorized access, data breaches, and other security vulnerabilities. Historically, developers directly managed keys, but best practices have evolved towards using temporary credentials and role-based access for improved security and easier administration.
