You can save your debit/credit card, just don't save the CVV (if it is static). My debit card provider also has a feature to randomizes CVV every 5 minutes ie. for every purchase (I can enable or disable the feature). CVV is mandatory for online usage of debit/credit card.

The same provider also give 25 IBANs per account. I could, for free, put 25 virtual debit cards on them, and have the IBANs empty unless I put money on it. Good luck scamming me this way. After all, the accounts are empty except for a few min when I put money on them to spend it.