1, social software: We all know the recruitment websites such as WeChat, QQ, Momo, Zhaopin, Boss Direct Employment, and 58 City. As long as you register as a member, you can find relevant information by name.

2. E-mail: We may think that the mobile phone number is the most accurate information. In fact, the mobile phone number may change for some reasons, but the chance of changing email is smaller than others. Some email accounts correspond to the customer's QQ number and micro-signal.

3. Mobile banking: The rise of online payment methods such as Alipay and WeChat not only changed our lives, but also showed others our spending power. From the customer's bank flow, you can know the other party's very accurate and detailed consumption location.

4。 Big data accurately repairs lost data services: Considering that customers have lost contact in the financial industry, there are professional platforms and service providers to repair these lost data services. The main working principle is to use the ID number to query all the mobile phone numbers of customers, which is triple play.