Yesterday AWS rolled out the new feature to enhance security for IAM user Access and Secret Key.Going forward now, IAM reports the time stamp when access keys were last used along with the region and the AWS service that was accessed.All these details can be seen from the IAM console, programmatically via the API/CLI/SDK, or in the contents of an IAM credential report.
View IAM details from AWS console
Go the IAM console, then select the user from the navigation panel. When you select the user ,access key last used details can see seen on the bottom most panel(As shown in the screenshot).
Moreover now you can download entire AWS account credential reports from the IAM console by clicking Credential Report tab in the navigation panel and clicking the Download Report.
Thanks Prashant Sharma