How do I make sure that the data does not end up in the online CVV dumps shop? There is no absolute guarantee against theft of card data and, consequently, money from it. It is necessary to observe everything, as well as additionally take care of the protection of your bank card. Issue a chip card and use terminals that allow you to read data from the chip, rather than from the magnetic tape. This option is safer, since each transaction using the chip generates a separate code, which will not be valid for the next transaction.