The tech you talked to might not have known yet but BoA has recognized that there is an update on their end. With this update, they recommend using Internet Explorer 9, since there is an incompatibility with MSN.
In order to see assistance on an account you believe may have been compromised please fill out the information at the following link:
https://support.live.com/eform.aspx?productKey=wlid&page=wlsupport_home_options_form_byemail&ct=eformts
We appreciate your continued support as we strive to provide you with the highest quality service available.