That’s what a senator quoted her as saying at a hearing. The FDIC demurs a bit, saying no estimate was given on the number of banks that could fail.
Note that FDIC is not even remotely being perky here or saying bank failures won’t happen. Nor are they making any attempt to contradict that up to 500 more banks might fail.
Today is Bank Failure Friday again. The FDIC generally seizes banks after the close of business on Fridays and posts the details on their failed bank list.