Jingbo group will reverse the tune. According to the inquiry of relevant public information, the back tone is a series of risks caused by the company's carelessness in employing people, and executives who join Jingbo Group will implement the back tone. Callback, also known as authentication verification, refers to the method of verifying the authenticity and validity of the candidate's background information and authentication materials by consulting the applicant's former boss, people who have recently had the opportunity to observe him, educational institutions, referees, etc.