You can go to the public security bureau to find your acquaintances and see if anyone else takes your ID card to get a room or something.
3. You can go to any branch of China Mobile, China Unicom and China Telecom to find out whether someone bought a new number with your ID card, bound the business, changed the package or something.
4. Go to the industrial and commercial department to check whether anyone has registered a company or trademark in your name.
Check whether your ID number and home address have been leaked on the Internet.