There's a few high-level and a few silly low-level differences. (1) With a credit card, your fraud liability is almost always zero (but technically $50). With

There's a few high-level and a few silly low-level differences. (1) With a credit card, your fraud liability is almost always zero (but technically $50). With a debit card, it varies - I think by law it's $0 if you report the card lost or stolen before it's used, $50 if you report it within 2 days, $500 if you report it within 60 days and unlimited after 60 days. For card-not-present I think it's 60 days for zero liability. (2) With a credit card, you simply don't pay the fraudulent charge until resolved. With a debit card, the money is out of your account until resolved. (3) There's some weird arcana in the Fair Credit Billing Act about common carrier bankruptcy. In some cases, you're not liable if an airline goes bankrupt after you book but before your trip. This doesn't apply to debit cards. [2] [1] https://www.nerdwallet.com/article/credit-cards/credit-card-vs-debit-card-safer-online-purchases https://www.nerdwallet.com/article/credit-cards/credit-card-... [2] https://www.transportation.gov/airconsumer/service-cessations-bankruptcy https://www.transportation.gov/airconsumer/service-cessation...