Once a card brushing case occurs, the bank should prove that the depositor is at fault, otherwise it will bear the loss of being brushed. "a lawyer in charge of a credit card skimming case said. How to ensure the security of card use. A news report about "Credit Card Exposed to Shocking Payment Vulnerability" has been quickly spread through the Internet. Some netizens said that consumption can be made by verifying personal information with only the credit card number and the last three digits.