Some employers look into your background before deciding whether to hire you, or before deciding whether you can keep your job. When they do, you have legal rights. The Federal Trade Commission (FTC) enforces a federal law that regulates background reports for employment, and the Equal Employment Opportunity Commission (EEOC) enforces federal laws against employment discrimination.
This publication explains these laws, and how to contact the FTC and EEOC if you think an employer has broken the law.
https://www.eeoc.gov/eeoc/publications/upload/eeoc_ftc_background_checks_employees.pdf
https://www.eeoc.gov/eeoc/publications/background_checks_employees.cfm