First let me say that this list of banks are victims. These are banks that have disclosed that they have been affected by the Heartland Systems Breach.
Be aware that some experts are now saying that this breach is bigger than the TJX/TJ MAXX Breach which would make it the largest to date. This breach has already resulted in a class action lawsuit and investigators are looking closely at the timeline of breach, notification and other things.
I am providing the link to the list so you can have a heads up. Also note that this list will likely grow as more banks/credit unions discover they are affected. Again these banks have not done anything wrong, like the individual they are the victims of Heartland Systems