[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-09-03。"],[],[],null,["# Data retention\n\nThis document describes data that we retain while performing transfers for\nStorage Transfer Service. This data is necessary to complete transfers on\nyour behalf, but isn't directly related to the data that you're transferring.\n\nUser credentials\n----------------\n\nTo complete a transfer job, you supply us with user credentials that we use\nto complete transfer jobs on your behalf. We encrypt and retain the user\ncredentials for as long as a\n[`TransferJob`](/storage-transfer/docs/reference/rest/v1/transferJobs#resource:-transferjob)\nexists. We delete the user credentials provided when the associated\n`TransferJob` is deleted.\n\nThe following account types are examples of user credentials that we retain\nfor the duration of a `TransferJob` to complete work on your behalf:\n\n- Amazon S3\n- Microsoft Azure Storage\n\nWhen using\n[federated identity](/storage-transfer/docs/source-amazon-s3#federated_identity)\nto authenticate to Amazon S3, AWS provides temporary credentials to\nStorage Transfer Service. Temporary credentials expire after a set period,\nafter which they cannot be used to access your S3 resources. See\n[Temporary security credentials in IAM](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp.html) for more details."]]