Providing full administrative privileges instead of restricting to the minimum set of permissions that the user is required to do exposes the resources to potentially unwanted actions.
In AWS Console -
In Terraform -
References:
https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_manage-edit.html
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_policy#policy