Earlier quoted context omitted.
We deleted the root credentials efter initial setup where we added mgmt iam accounts used by our automation. If we ever needed them we used the recovery process. All users and services use temporary credentials.
I made an assumption that you have federated AWS account setup. One organization management AWS account and then federated accounts under it and you are referring to deletion of deletion of ROOT credentials in the federated accounts. Considering thats not the case, what you just did is move the goal post to a account recovery process. Question becomes who has ability to recover the account, in case its tied with emai…
An email per account where only security team has access. Whoever can modify domain can already do this.