Are banks allowed to release names of a party involved in a "supposed fraud" to a person who''s accont has been jeopardized?

I was falsely accused of using someone''s checking account to pay a utility bill. When I found out, I was given a letter where it clearly states that the utility account holder is "My Name". However, I do not have an account with that utility company, my wife does (who does not have the same last name as I). I am now being harrased and humiliated by that person on daily basis. Is there a law that prohibits banks to release names of the accused to the person who''s checking account has been "jeopardized". Just to mention, that I did NOT, and would never in my right mind do what I''m being accused of. I do not know how this could have happened, and unfortunately I have no way of proving that. I just want to make sure that my legal rights as the consumer of the same bank were not compromised.