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Many AWS Step Functions events in CloudTrail are considered "Management Events", but should be "Data Events"

We use Step Functions pretty extensively in one of our applications. I noticed higher than expected costs in CloudTrail and GuardDuty which caused me to investigate. It looks like every call to StartExecution, SendTaskHeartbeat, StartExecution, SendTaskSuccess, SendTaskFailure, etc are all considered "Management Events" inside CloudTrail. Since all of these function are normal usage of the Step Functions service, I think they should be considered "Data Events" in the same way that regular "usage" of S3, Dynamo, and Lambda API calls are handled. By being considered "management events", they are causing a large number of events (and cost) in CloudTrail, and similar with GuardDuty. Below is a typical event caused by an API call to SendTaskHeartbeat, where you can see `"managementEvent": true` and ` "eventCategory": "Management"`. I believe this should be `"managementEvent": false` and ` "eventCategory": "Data"` ``` { "eventVersion": "1.08", "userIdentity": { "type": "AssumedRole", "principalId": "xxxxxxxxxxxxxx-04fe38ef50d84dad1", "arn": "arn:aws:sts::722537357562:assumed-role/my-role-name/i-x0x4xfxex3x8xex", "accountId": "999999999999", "accessKeyId": "ASIAXXXXXXXXXXXPB", "sessionContext": { "sessionIssuer": { "type": "Role", "principalId": "AROxxxxxxxxxxxxAGI", "arn": "arn:aws:iam::999999999999:role/my-role-name", "accountId": "999999999999", "userName": "my-role-name" }, "webIdFederationData": {}, "attributes": { "creationDate": "2022-05-03T19:21:10Z", "mfaAuthenticated": "false" }, "ec2RoleDelivery": "2.0" } }, "eventTime": "2022-05-03T20:56:18Z", "eventSource": "states.amazonaws.com", "eventName": "SendTaskHeartbeat", "awsRegion": "us-east-1", "sourceIPAddress": "3.81.182.218", "userAgent": "aws-sdk-php/3.183.13 OS/Linux/5.4.0-1030-aws GuzzleHttp/6.5.5 curl/7.68.0 PHP/7.4.3", "requestParameters": { "taskToken": "AAAAKgAAAA......AqHoA+2qxXBI=" }, "responseElements": null, "requestID": "999999999-81de-40bf-8b77-7ccbf0db5fb4", "eventID": "999999999-2193-47dd-8e3d-10a5d9e6266d", "readOnly": false, "eventType": "AwsApiCall", "managementEvent": true, "recipientAccountId": "999999999999", "eventCategory": "Management", "tlsDetails": { "tlsVersion": "TLSv1.2", "cipherSuite": "ECDHE-RSA-AES128-GCM-SHA256", "clientProvidedHostHeader": "states.us-east-1.amazonaws.com" } }
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asked 7 months ago