it depends on the card and the bank-- the " debit" card I have with my ( US) bank account is a branded Mastercard. Same regs apply as if it were a " credt" card, same security of funds. ( and I was hit in a data breech several times, the bank was AWESOME in being on top of it, they knew before I knew).

I have seen and handled hundreds upon hundreds of traveler card transactions from all over the world, and tourists from every ( yes, EVERY) continent have presented cards that are either Amex, Visa or Mastercard, marked as USD or US Funds.

Interac, the Canadian bank STRICLTY debit card, that one would use solely at a bank associated ATM, is not affiliated with any credit card network, and does not function as a " purchase" card, it only works at at an ATM.

So, yes, the OP needs to know exactly what he is carrying/using.

Breeze.