No, it’s safe. Banks will not make calls to friends or relatives of cardholders to confirm or verify the cardholder's personal information or transactions. Ping An Bank's credit card security has a security code that can protect information in all directions and monitor information in real time. This security code is located in the signature field on the back of the card. The total number is seven digits. Ping An Bank has created a multi-dimensional and comprehensive overseas card-using ecosystem, using cutting-edge technology to protect the card-using ecosystem.