This is also one of the reasons for worrying that some employees have inside information and there is insider trading between them.

Second, because these employees get news faster than ordinary investors in this industry, they are worried that they will trade in advance even if there is no insider trading.

The third is to build a rat warehouse privately. Use your own funds to set up your own small vault at the customer's location.

These are basically the basic reasons why all financial practitioners are restricted.