First, Reg E doesn't cover businesses so that goes out the window.
We will offer debit cards to business customers as long as they sign our agreement. It basically states that they are responsible for the cards and the security of the cards. If there are fraudulent charges, the bank will attempt to recover funds and dispute on their behalf, however, if it comes down to no chargeback rights, the liability falls on the business....regardless of the circumstances of the fraudulent activity. Cards are only issued to signers on the account and in some special cases to those employees that an executive signs off on. AND we only issue to those customers that we are comfortable with.
I really don't think it's so much of a credit exposure risk but more of a security risk. With a consumer, it's very clear cut on what is expected of the bank in cases of unauthorized charges. However, when it comes to businesses, it's not quite so cut and dry. Plus, I think the risk of fraudulent activity goes up (a disgruntled employee embezzles corporate funds for an example). So, while the monetary liability may not legally fall to the bank, it's possible that a customer service and PR nightmare could happen.
I'm not an expert on unauthorized transactions using a debit card on business accounts by any means. We've put such tight controls on it that we haven't had any. So, Brenda if I'm wrong, please correct me!
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My opinions are definately my own. I could be wrong. But I don't think so.