yínháng zhè yī bù yóuqí zhòngyào, yīnwèi yànzhèngmǎ chángcháng fā dào yùliú shǒujī hào

银行这一步尤其重要，因为验证码常常发到预留手机号。

This step at the bank is especially important because the verification code is often sent to the reserved phone number.