This rule detects the first time a principal calls AWS CloudFormation CreateStack, CreateStackSet or CreateStackInstances API. CloudFormation is used to create a collection of cloud resources called a stack, via a defined template file. An attacker with the appropriate privileges could leverage CloudFormation to create specific resources needed to further exploit the environment. This is a new terms rule that looks for the first instance of this behavior for a role or IAM user within a particular account.

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