* [Tuning] First Time AWS Cloudformation Stack Creation by User
- corrected a creation_date error
- Removed `CreateStackSet` API call as this only creates a blueprint for creating stack instances across multiple AWS accounts and regions but does not actually create the resources
- Added `CreateStackInstances` API call which is used to create resources defined in the StackSet
- removed user from rule name as this also triggers for roles
- edited description and investigation guide
- added Mitre technique
* adding highlighted fields
Isai
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