An AWS Lambda function was misused to alter data, and a security engineer must identify...

The execution role for the Lambda function did not grant permissions to write log data to CloudWatch Logs.

The Lambda function was invoked by using Amazon API Gateway, so the logs are not stored in CloudWatch Logs.

The execution role for the Lambda function did not grant permissions to write to the Amazon S3 bucket where CloudWatch Logs stores the logs.

The version of the Lambda function that was invoked was not current.