A user logged into their Outlook and a saw an additional mailbox for a colleague that they had never been granted access to, and should not have had access to. On top of that, they had Full Access + SendAs.
Managing Personal Contacts on iOS
This matter has arisen due in part to some work that we are doing with a client where it is prohibited to synchronize the Microsoft Outlook App Contacts from their Organization mailbox to the Personal Contacts on their iPhone (and Androids) due to Intune App Protection Policies