That's not crazy. It has always been very safe to use a credit card, because if some fraudster uses your credit card to pay for something, you're not liable. With cash, checks or a debit card, your money is already gone. With a credit card, the credit card company's money is on the line, not yours.

I will second this. I write software that accepts both credit cards and EFT (Electronic fund transfer) transactions. Credit cards are much harder to spoof than EFT account data. A voided check has all of the data you need to initiate an EFT transaction.