Which AWS service is used to temporarily provide federated security credentials to access AWS resources?

Explanations:

Amazon GuardDuty is a threat detection service that continuously monitors for malicious activity and unauthorized behavior to protect AWS accounts and workloads, but it does not provide federated security credentials.

AWS Simple Token Service (AWS STS) is specifically designed to provide temporary security credentials for federated users to access AWS resources. It enables users to assume roles and receive a set of temporary credentials that are valid for a short duration.

AWS Secrets Manager is a service that helps protect access to applications, services, and IT resources without the upfront investment and on-going maintenance costs of operating your own infrastructure. It is not related to federated security credentials.

AWS Certificate Manager is used to manage SSL/TLS certificates for AWS-based websites and applications. It does not provide security credentials for federated access to AWS resources.