[dreyfan]

Uhh, I'm a real person with a clean record? There's no way for a company to ask the IRS if a person has multiple employers.

[lotsofpulp]

They can ask Equifax though (assuming your employer participates):

https://theworknumber.com/

[slumdev]

You can (and should) freeze your Work Number file.

https://theworknumber.com/employee-data-freeze/