Exhibit your professional principles and redirect their inquiry. Your past employer references can affirm the level of overall success and among which sectors or types of givers. Give totals not actuals. Maybe cite individuals verbally, not in writing, without betraying confidences.
You can cite a few specific situations or relationships of your fundraising accomplishments while leaving out names. Or you can comment on their(!) published donors, showing you know the donor/funder community or personalities and show knowledge of approach and cultivation.
