To opt out of Hyundai selling your personal information, you must first pass a five-question identity quiz about old loans, past addresses, and your birthstone.

To opt out of having their personal information sold, the user has to prove who they are by answering five questions. The questions ask which lender holds a mortgage the user may have opened in a certain month and year; which lender holds a Home Equity Line of Credit that the user may have; how much a past car loan or lease payment was; which city the user used to live in; and which birthstone matches their date of birth.