Let the interviewer know you understand the importance of protecting sensitive information. Discuss any secure methods you are aware of, such as fax machines, secure emails, or intra-company mail.

"An employee's Social Security card and Social Security number are sensitive information so I would want to make sure they did not send it to me in an unsecured way like by regular email or through a text. If your company has the ability to send secure emails, I would use that method as the quickest option. If you do not, I would ask them to use a fax machine (I know most Benefits departments still have one) or to have their manager send it to me through company mail. Or as a last resort, I could ask the on-site manager to make a copy of the document for our records and have them share the information with me verbally over the phone, waiting until a later time when the copy of the card can be brought to me to store in the associate's file."