Can the company that the school will recruit be a liar?

As a unit, we often attend job fairs. The way to register is to have a receipt from the school and a business license, so we have a guarantee on the first management card. The quality of enterprises here is difficult to control, and the industry is OK. Why are there so few liars, or even none? The cost is too high for a liar. They tried their best to get in, so many people watched and pulled it out in a few minutes. It is a big problem for students to go out. You know, the social government has zero tolerance for cheating students, and maybe something really happened, so in my opinion, there is basically no! Please feel free to apply for a job