What's the matter with receiving a lot of verification codes after answering overseas calls?

After receiving an overseas call, he received a large number of verification codes and was regarded as a fraud object. According to the relevant information of the inquiry, you need to be vigilant when receiving overseas calls and a large number of verification codes to avoid being deceived. Users need to fill in or use the mobile phone number to receive the verification code when registering their accounts on some platforms or websites.