I work in two companies at the same time. If a company buys social security, will the other party find out what my salary is in another company?

If your opposite company has purchased social security, under normal circumstances, the other party can check your salary through the social security system. However, the specific query methods may vary by region and industry. It is recommended that you consult your company's finance department or human resources department to obtain more accurate information.

It should be noted that working in two companies at the same time may involve some legal risks, such as violating labor laws. Therefore, it is recommended that you carefully consider and choose a legal and compliant way to deal with related issues.