Answer:
You don't. You can offer Internet banking to commercial customers, but offering bill pay features should be done with the utmost of caution. While you can restrict access with user ID's and passwords, you cannot control how the businesses employees exchange them. Similar to offering a commercial customer a debit card, you open yourself to liability. It is a business decision on your part to decide if it is worth it.
First published on BankersOnline.com 5/7/01