Thank you for your email. We understand the sensitivities around entering a Social Security number when registering for Zebit. While we do not run credit checks, in order to grant you credit, Zebit is required to use the last four digits of your SSN to verify your identity. Your SSN is protected and securely encrypted with the same security standards used by top financial institutions. We don’t resell any of your contact or personal information to third parties for any purpose. For additional questions, please contact us at (855) 449-3248. We are available by phone and email Monday - Friday from 6am - 6pm (Pacific) and Saturday from 8am - 5pm (Pacific). On Sunday, we are available only by email from 8am - 5pm (Pacific).