The State supported banks have provided me with the following information.
Bank of Ireland
In certain cases Bank of Ireland will require a customer to sign a Confidentiality Agreement prior to entering into discussions in relation to the formulation of alternative arrangement/restructuring. The reason for this is that Bank of Ireland treats customers on a case by case individual basis and, especially in cases of particular sensitivity, we wish to ensure that the subject matter of the arrangement is confidential between the Bank and the customer. Where appropriate and depending on the nature of the individual case the Bank may communicate to a credit reference agency relevant details concerning the status of the credit relationship between the Customer and the Bank.
All bank correspondence/interactions with borrowers are treated confidentially. AIB complies with its reporting obligations to the Irish Credit Bureau. However, the bank cannot comment on how the information provided is used by the Irish Credit Bureau.
Permanent TSB has confirmed that it does not ask customers to sign non-disclosure agreements in respect of restructurings. Permanent TSB provides information to the Irish Credit Bureau in compliance with its reporting obligations.