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AWS Classic resource usage.

Explanation

AWS Classic resources run in a shared environment with infrastructure owned by other AWS customers. You should run resources in a VPC instead.

Insecure Example

The following example will fail the AWS003 check.

resource "aws_db_security_group" "my-group" {
  # ...
}

Secure Example

The following example will pass the AWS003 check.

resource "aws_security_group" "allow-db-access" {
  # ...
}