The safest way is to call the bank credit card center immediately and report the loss of the card. Ask the bank to reissue a new one. This will be really troublesome, but only in this way is the safest.

The main security control points of credit cards are as follows

1, card number

2. Password

3. Validity period

4. The last three digits of the security code on the back.

5. Identity card information of the credit card applicant.

6. The bank reserves a safe telephone.

Please don't let others know the above information easily! ! I hope my answer is helpful to you, and I wish you success!