I received a strange telecom call, saying that the information such as education upgrading and registration, bank cards and so on will not be leaked out, and will it be dangerous?

1. If you only know your bank card number, there should be no danger. Theoretically, the bank card number is not absolutely confidential. Many times, when the unit needs it, it will even register the personal bank card number. As long as the other party doesn't know your password, your card is safe.

2. If your bank card password is leaked, please contact the bank customer service immediately to apply for loss reporting of the bank card, and then bring your ID card and bank card to the counter as soon as possible to modify the bank card password or directly replace it with a new bank card.