Why do I need to give you my SSN?

Your SSN is used as a foundation of the background check and powers the SSN Trace and Address History.  

The SSN Trace is used as an address locator that compares your Social Security Number to certain credit and public records to help identify an individual's address history and associated names. This information points to any additional areas where criminal records should be searched and gives Vetty any additional names to search besides your legal name.