We would NOT allow this type of access. Acess to internet banking is via the business account, whereby the authorized person can give access to that account to a number of people. If one person was in all three accounts, he/she would have to log into each business account separately with their appropriate credentials and could only perform those functions assigned to them by the authorized person for the account.
I hear and I forget. I see and I remember. I do and I understand.--Confucius