You&#x27;d need to buy too many cards to find them by number, tho the combination of issuing bank, IBAN, card type, expiry date and [post|zip]code would likely provide enough bits to identify a source.<p>The shops would combat this by narrowing the information available about a card pre-purchase.<p>Here is what a record looks like on Rescator (a popular autoshop for credit cards) pre-purchase:<p><a href="http:&#x2F;&#x2F;i.imgur.com&#x2F;eeEThdr.png" rel="nofollow">http:&#x2F;&#x2F;i.imgur.com&#x2F;eeEThdr.png</a>