One (more) thing to opt out of:

Freeze Your Data - The Work Number
https://employees.theworknumber.com/employee-data-freeze

As I understand it, payroll whores your salary out to Equifax*, who then pimps it to others

* Yeah, that one: https://en.wikipedia.org/wiki/2017_Equifax_data_breach

Freeze Your Data | The Work Number

You can control access to your data by requesting a data freeze at any time, at no cost. This freeze means many verifiers will be unable to view your data from The Work Number.

No they sell it directly: https://theworknumber.com/solutions/industries/pre-employmen...

The Work Number is in fact Equifax.

Pre-Employment Verifications & Work History | The Work Number

Streamline pre-employment verifications with automated data from The Work Number to simplify your application processes.