From my experience, the banks don't seem at all interested in clamping down on Cr Card fraud. I had a brand new card which I had used 4 times, when there was a fraudulent online transaction on it. The bank refunded the amounts but I wanted to know the details from the transaction so I could approach the 4 outlets and establish if the delivery name/person corresponded with any of their employee details. The banks refused and they refused to look into the matter themselves despite the fact that it would have been very easy to do so - brand new card only used in 4 places.