Comment by antoncohen

The debit card behavior is probably bank specific. I had fraudulent transactions on my debit card. The bank caught it after a few transactions, alerted me, and shutdown the card when I told them it wasn't me. I didn't get charged for any of the fraudulent transactions. I also had a restaurant charge my debit card for my bill and another customer's bill (honest mistake, not fraud). The restaurant wouldn't refund the transaction, so I disputed it with my bank, who reversed the transaction. The bank was fully set up to dispute debit card transactions from their website.