1. Search for business license number: enter the business license number in the search engine to see if other websites or information platforms have issued the same business license. If there are multiple similar business license information, then the business license has been used by others.
2. Pay attention to the enterprise query platform: Many areas have enterprise information query platforms. You can enter your own business license number to inquire about the basic information of related enterprises, and judge whether there is fraudulent use by comparing the information such as enterprise name, legal representative and registered capital.
3. Consultation with the industrial and commercial department: You can directly contact the local industrial and commercial administrative department to check whether your business license has been fraudulently used by others, and the staff will help verify the information.