To prevent fraud from Bank cards via telephone, you need to

Try not to report the phone number linked to the personal account of an online Bank or a card in cases when a loan cvv bins for sale application is filled out, an ad is made on well-known transaction sites, and a new customer is registered in online stores. It is better to provide a different number that cannot be used to access your Bank account;
When receiving calls on behalf of Bank employees, you should record a conversation with them, ask them what Department buy good cc they work in, their position and full name – it is likely that after such an inquiry, the fraudster will reset the call;